Dr Mahyar Shirvanimoghaddam
School of Elect Engineering and Computer Science
- Phone:(02) 4921 7440
Mahyar Shirvanimoghaddam received the B. Sc. degree with 1’st Class Honours from University of Tehran, Iran, in September 2008, the M. Sc. Degree with 1’st Class Honours from Sharif University of Technology, Iran, in October 2010, and the Ph.D. degree from The University of Sydney, Australia, in January 2015, all in Electrical Engineering. He then held a research assistant position at the Centre of Excellence in Telecommunications, School of Electrical and Information Engineering, The University of Sydney, before coming to the University of Newcastle, where he is now a Postdoctoral Research Associate at the School of Electrical Engineering and Computer Science.
His general research interests include channel coding techniques, cooperative communications, compressed sensing, machine-to-machine communications, and wireless sensor networks.
Mahyar Shirvanimoghaddam was a recipient of University of Sydney International Scholarship (USydIS), University of Sydney Postgraduate Award (UPA), and University of Sydney Norman I prize. He is currently serving as the Reviewer of several international prestigious journals, e.g., IEEE Transactions on Communications, IEEE Transactions on Wireless Communications, IEEE Communication Letters, IEEE Transactions on Vehicular Technology, IEEE Wireless Communications Letters, IEEE Signal Processing Letters, and several international flagship conferences.
Information Theory, Coding Theory, Wireless Communications, M2M Communications, and Compressive Sensing.
Coding Theory, Wireless Communications.
My research collaborators include Saraha Johnson from the University of Newcastle (Australia), Yonghui Li from the University of Sydney (Australia), and Mischa Dohler from King's College London (UK).
- Doctor of Philosophy, University of Sydney
- Master of Science, Sharif University of Technology - Iran
- Analog Fountain Codes
- Coding Theory
- Compressive Sensing
- Information Theory
- M2M Communications
- Rateless Codes
- Wireless Communications
- Persian (excluding Dari) (Mother)
- English (Fluent)
Fields of Research
|080401||Coding and Information Theory||60|
|080503||Networking and Communications||30|
|Dates||Title||Organisation / Department|
|1/08/2014 - 1/03/2015||Research Associate||The University of Sydney
Center of Excellence in Telecommunications
|1/01/2010 -||Membership - IEEE (Communications and Information Theory Societies)||Institute of Electrical & Electronic Engineers (IEEE)
University of Sydney Norman-I Prize
The University of Sydney
University of Sydney Postgraduate Award (UPA)
The University of Sydney
University of Sydney Postgraduate Research Support Scholarship (PRSS)
The University of Sydney
University of Sydney International Scholarship (USydIS)
The University of Sydney
Faculty of Engineering scholarship for Exceptional Students
University of Tehran
|Year||Title / Rationale|
|2016||Technical Program Committee / VTC-Fall 2016|
|Year||Title / Rationale|
|2016||Code Design in the Low SNR Regime: A Rateless Approach / AusCTW 2016|
|Year||Title / Rationale|
|2014||Advances in the Physical Layer / King's College London|
For publications that are currently unpublished or in-press, details are shown in italics.
Habibzadeh A, Shirvani Moghaddam S, Razavizadeh SM, Shirvanimoghaddam M, 'Analysis and performance evaluation of an efficient handover algorithm for cognitive HetNets', International Journal of Communication Systems, (2017)
Â© 2017 John Wiley & Sons, Ltd. Cognitive heterogeneous network is a promising technology to meet the requirements of future wireless networks in cost and energy efficiency. By ... [more]
Â© 2017 John Wiley & Sons, Ltd. Cognitive heterogeneous network is a promising technology to meet the requirements of future wireless networks in cost and energy efficiency. By using vertical handover (VHO) between different network tiers, such as macro and femto, the traffic congestion can be potentially alleviated, and the spectral efficiency is significantly increased. However, performing VHO for a cognitive handover user (CHU) and simultaneously guaranteeing the quality of service of the primary user (PU) is the most challenging issue in such a network. This paper proposes an efficient VHO strategy in a cognitive heterogeneous network, which considers both adaptive average received signal and spectrum availability, namely, average received signal and spectrum availability. To analyse the performance of the proposed average received signal and spectrum availability algorithm, several metrics are investigated. First, the assignment probability of a CHU from a macro base station to a femto base station is evaluated and simplified in a closed-form expression. Then, the outage probability of a CHU and collision probability of the PU are theoretically investigated for the proposed algorithm and are compared with 2 well-known algorithms, the modified received signal strength-a and the received signal strength and wireless transmission loss. We also introduce a new performance metric, referred to as figure of merit, which jointly considers the assignment and outage probability of a CHU, collision probability of a PU, and the number of unnecessary handovers of a CHU. Figure of merit effectively shows the superiority of the proposed handover algorithm to conventional ones.
Habibzadeh A, Shirvani Moghaddam S, Razavizadeh SM, Shirvanimoghaddam M, 'Modeling and analysis of traffic-aware spectrum handover schemes in cognitive HetNets', Transactions on Emerging Telecommunications Technologies, (2017)
Â© 2017 John Wiley & Sons, Ltd. Cognitive radio (CR) heterogeneous network (HetNet) is an emerging technology that aims at enhancing spectrum utilization through spectrum sharin... [more]
Â© 2017 John Wiley & Sons, Ltd. Cognitive radio (CR) heterogeneous network (HetNet) is an emerging technology that aims at enhancing spectrum utilization through spectrum sharing among macro base stations and femto base stations. Similar to other CR networks, in CR HetNets, providing the desired quality of service for the licensed primary users (PUs) is of utmost importance. Due to the shared spectrum between PUs and cognitive secondary users (CSUs) as well as offloading policies, the spectrum handover (SHO) process must be carefully designed. Using the idea of reserved channels, this paper proposes 2 traffic-aware SHO schemes for cognitive HetNets. In the proposed schemes, each CSU can adopt either a shared-to-reserved or a reserved-to-shared SHO strategy. The proposed approaches can be implemented in both distributed and centralized manners to maintain a trade-off between performance and complexity. The performance of the proposed schemes is mathematically analyzed, and closed-form expressions are derived for the blocking probability of the PUs and the forced termination probability of the CSUs. Numerical results show that the proposed schemes outperform the existing SHO approaches, such as always-change, always-stay, and proactive methods, specifically at higher arrival rates of PUs. Moreover, several evaluation metrics, such as effective throughput, energy efficiency, and a proposed combinational utility function, are investigated for both distributed and centralized schemes. The results show that the proposed centralized schemes offer higher performance compared to the distributed schemes.
Jayasooriya S, Shirvanimoghaddam M, Ong L, Johnson SJ, 'Joint optimisation technique for multi-edge type low-density parity-check codes', IET COMMUNICATIONS, 11 61-68 (2017)
Shirvanimoghaddam M, Condoluci M, Dohler M, Johnson SJ, 'On the Fundamental Limits of Random Non-orthogonal Multiple Access in Cellular Massive IoT', IEEE Journal on Selected Areas in Communications, (2017)
IEEE Machine-to-machine (M2M) constitutes the communication paradigm at the basis of Internet of Things (IoT) vision. M2M solutions allow billions of multi-role devices to communi... [more]
IEEE Machine-to-machine (M2M) constitutes the communication paradigm at the basis of Internet of Things (IoT) vision. M2M solutions allow billions of multi-role devices to communicate with each other or with the underlying data transport infrastructure without, or with minimal, human intervention. Current solutions for wireless transmissions originally designed for human-based applications thus require a substantial shift to cope with the capacity issues in managing a huge amount of M2M devices. In this paper, we consider the multiple access techniques as promising solutions to support a large number of devices in cellular systems with limited radio resources. We focus on non-orthogonal multiple access (NOMA) where, with the aim to increase the channel efficiency, the devices share the same radio resources for their data transmission. This has been shown to provide optimal throughput from an information theoretic point of view.We consider a realistic system model and characterize the system performance in terms of throughput and energy efficiency in a NOMA scenario with a random packet arrival model, where we also derive the stability condition for the system to guarantee the performance.
Shirvanimoghaddam M, Dohler M, Johnson S, 'Massive Multiple Access Based on Superposition Raptor Codes for M2M Communications', IEEE Transactions on Wireless Communications, 16 (2017) [C1]
Jayasooriya S, Shirvanimoghaddam M, Ong L, Johnson SJ, 'Joint optimisation technique for multi-edge type low-density parity-check codes', IET Communications, 11 61-68 (2017)
Â© The Institution of Engineering and Technology 2016. This study considers the optimisation of multi-edge type low-density parity-check (MET-LDPC) codes to maximise the decoding ... [more]
Â© The Institution of Engineering and Technology 2016. This study considers the optimisation of multi-edge type low-density parity-check (MET-LDPC) codes to maximise the decoding threshold. The authors propose an algorithm to jointly optimise the node degree distribution and the multi-edge structure of MET-LDPC codes for given values of the maximum number of edge-types and maximum node degrees. This joint optimisation is particularly important for MET-LDPC codes as it is not clear a priori which structures will be good. Using several examples, they demonstrate that the MET-LDPC codes designed by the proposed joint optimisation algorithm exhibit improved decoding thresholds compared with previously reported MET-LDPC codes.
Johnson SJ, Lance AM, Ong L, Shirvanimoghaddam M, Ralph TC, Symul T, 'On the problem of non-zero word error rates for fixed-rate error correction codes in continuous variable quantum key distribution', New Journal of Physics, 19 (2017)
Â© 2017 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. The maximum operational range of continuous variable quantum key distribution protocols has shown to be improve... [more]
Â© 2017 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. The maximum operational range of continuous variable quantum key distribution protocols has shown to be improved by employing high-efficiency forward error correction codes. Typically, the secret key rate model for such protocols is modified to account for the non-zero word error rate of such codes. In this paper, we demonstrate that this model is incorrect: firstly, we show by example that fixed-rate error correction codes, as currently defined, can exhibit efficiencies greater than unity. Secondly, we show that using this secret key model combined with greater than unity efficiency codes, implies that it is possible to achieve a positive secret key over an entanglement breaking channel - an impossible scenario. We then consider the secret key model from a post-selection perspective, and examine the implications for key rate if we constrain the forward error correction codes to operate at low word error rates.
Egan M, Peters GW, Nevat I, Shirvanimoghaddam M, Collings IB, 'A ruin theoretic design approach for wireless cellular network sharing with facilities', Transactions on Emerging Telecommunications Technologies, (2016)
Â© 2016 John Wiley & Sons, Ltd. With the rise of cheap small cells in wireless cellular networks, there are new opportunities for third party providers to service local regions ... [more]
Â© 2016 John Wiley & Sons, Ltd. With the rise of cheap small cells in wireless cellular networks, there are new opportunities for third party providers to service local regions via sharing arrangements with traditional operators. In fact, such arrangements may be particularly desirable for large facilities-such as stadiums, universities, and mines-as they already need to cover property costs, and often have fiber backhaul and efficient power infrastructure. In this paper, we propose a network-sharing arrangement between large facilities and traditional operators. Our network-sharing arrangement consists of two aspects: leasing of data access and spectrum from traditional operators; and service agreements with users. As a consequence of the incorporation of the user service agreements into the sharing arrangement, financial as well as physical resource constraints need to be accounted for. This introduces a new dimension into wireless network resource allocation, which requires a new evaluation framework. To this end, we develop a framework based on ruin theory, where the key metric is the probability that the facility is insolvent within a fixed time period. We then investigate the effect of initial capital and physical layer parameters on the ruin probability, which provides insight into the robustness of the network-sharing arrangement to varying conditions.
Jayasooriya S, Shirvanimoghaddam M, Ong L, Lechner G, Johnson S, 'New Density Evolution Approximation for LDPC and Multi-Edge Type LDPC Codes', IEEE Transactions on Communications, 64 4044-4056 (2016) [C1]
Shirvanimoghaddam M, Johnson S, 'Raptor Codes in the Low SNR Regime', IEEE Transactions on Communications, 64 4449-4460 (2016) [C1]
Duan R, Liu R, Shirvanimoghaddam M, Li Y, Chen CW, 'A low PAPR constellation mapping scheme for rate compatible modulation', IEEE Communications Letters, 20 256-259 (2016) [C1]
Â© 2015 IEEE. This letter proposes a novel nonlinear constellation mapping (NLCM) scheme for the rate compatible modulation (RCM) approach in low-To-moderate signal to noise ratio... [more]
Â© 2015 IEEE. This letter proposes a novel nonlinear constellation mapping (NLCM) scheme for the rate compatible modulation (RCM) approach in low-To-moderate signal to noise ratios (SNRs). In NLCM, each RCM coded symbol is mapped to a complexvalued amplitude phase shift keying (APSK) constellation point. Moreover, we provide a novelmethod of designing code degree and weight set for a wide SNR range. The proposed NLCM is developed to increase the throughput and decrease the peak to average power ratio (PAPR) at the same time. Both analysis and simulation results show that the NLCM scheme outperforms the original RCM in terms of throughput and PAPR.
Shirvanimoghaddam M, Johnson SJ, 'Multiple Access Technologies for Cellular M2M Communications', ZTE COMMUNICATIONS, 14 42-49 (2016) [C1]
Abbas R, Shirvanimoghaddam M, Li Y, Vucetic B, 'Performance Analysis and Optimization of LT Codes with Unequal Recovery Time and Intermediate Feedback', 2016 IEEE International Conference on Communications (2016) [E1]
Shirvanimoghaddam M, Johnson SJ, Lance AM, 'Design of Raptor Codes in the Low SNR Regime with Applications in Quantum Key Distribution', IEEE ICC 2016 - Communications Theory (2016) [E1]
Habibzadeh A, Moghaddam SS, Razavizadeh SM, Shirvanimoghaddam M, 'A spectrum handover mechanism for secondary users in cognitive femtocell HetNets', 2016 24th Iranian Conference on Electrical Engineering, ICEE 2016 (2016) [E1]
|2016||Abbas R, Shirvanimoghaddam M, Li Y, Vucetic B, 'Analysis on LT codes for Unequal Recovery Time with Complete and Partial Feedback', 2016 IEEE International Symposium on Information Theory (ISIT) (2016) [E1]|
Shirvanimoghaddam M, Johnson S, 'Approaching the Capacity of AWGN Channels using Multi-Layer Raptor Codes and Superposition Modulation', 2016 IEEE International Symposium on Information Theory (ISIT) (2016) [E1]
Habibzadeh A, Moghaddam SS, Razavizadeh SM, Shirvanimoghaddam M, 'A novel handover decision-making algorithm for HetNets.', ISSPIT (2015) [E1]
|2015||Abbas R, Shirvanimoghaddam M, Li Y, Vucetic B, 'On SINR-based random multiple access using codes on graph', IEEE Global Communication Conference (GLOBECOM) (2015) [E1]|
Gao M, Chen HH, Li Y, Shirvanimoghaddam M, Shi J, 'Full-Duplex Wireless-Powered Communication with Antenna Pair Selection', 2015 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC) (2015)
Tian S, Li Y, Shirvanimoghaddam M, Vucetic B, 'A Physical-Layer Rateless Code for Wireless Channels', IEEE TRANSACTIONS ON COMMUNICATIONS, 61 2117-2127 (2013)
Shirvanimoghaddam M, Li Y, Tian S, Vucetic B, 'Distributed Raptor Coding for Erasure Channels: Partially and Fully Coded Cooperation', IEEE TRANSACTIONS ON COMMUNICATIONS, 61 3576-3589 (2013)
Shirvanimoghaddam M, Li Y, Vucetic B, 'Near-Capacity Adaptive Analog Fountain Codes for Wireless Channels', IEEE COMMUNICATIONS LETTERS, 17 2241-2244 (2013)
Shirvanimoghaddam M, Li Y, Vucetic B, 'Adaptive Analog Fountain for Wireless Channels', 2013 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC) (2013)
Movassaghi S, Shirvanimoghaddam M, Abolhasan M, Smith D, 'An Energy Efficient Network Coding Approach for Wireless Body Area Networks', PROCEEDINGS OF THE 2013 38TH ANNUAL IEEE CONFERENCE ON LOCAL COMPUTER NETWORKS (LCN 2013) (2013)
Movassaghi S, Shirvanimoghaddam M, Abolhasan M, 'A Cooperative Network Coding Approach to Reliable Wireless Body Area Networks with Demodulate-and-Forward', 2013 9TH INTERNATIONAL WIRELESS COMMUNICATIONS AND MOBILE COMPUTING CONFERENCE (IWCMC) (2013)
Shirvanimoghaddam M, Li Y, Vucetic B, 'User Cooperation via Rateless Coding', 2012 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM) (2012)
Shirvanimoghaddam M, Li Y, Vucetic B, 'Distributed Rateless Coding with Cooperative Sources', 2012 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY PROCEEDINGS (ISIT) (2012)
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Grants and Funding
|Number of grants||2|
Click on a grant title below to expand the full details for that specific grant.
20171 grants / $12,500
Funding body: Universities Australia
|Funding body||Universities Australia|
Mahyar Shirvanimoghaddam, Sarah Johnso, Balazs Matuz, Federico Clazzer, Gianluigi Liva, Sandro Scalise
|Scheme||Australia-Germany Research Collaboration Scheme|
|Type Of Funding||International - Competitive|
20161 grants / $7,000
Funding body: ATSE (Australian Academy of Technological Sciences and Engineering)
|Funding body||ATSE (Australian Academy of Technological Sciences and Engineering)|
|Project Team||Doctor Mahyar Shirvanimoghaddam, Professor Mischa Dohler|
|Type Of Funding||Other Public Sector - Commonwealth|
Number of supervisions
|Year||Level of Study||Research Title||Program||Supervisor Type|
|2017||PhD||Multi-Edge Type Density Evolution: Analysis, Code Optimization and Applications to Raptor Code Design||PhD (Electrical Engineering), Faculty of Engineering and Built Environment, The University of Newcastle||Co-Supervisor|
The map is a representation of a researchers co-authorship with collaborators across the globe. The map displays the number of publications against a country, where there is at least one co-author based in that country. Data is sourced from the University of Newcastle research publication management system (NURO) and may not fully represent the authors complete body of work.
|Country||Count of Publications|
|Iran, Islamic Republic of||4|
Dr Mahyar Shirvanimoghaddam
School of Elect Engineering and Computer Science
Faculty of Engineering and Built Environment