Performance of a Cooperative Network With an Energy Buffer-Aided Relay

In this paper, we analyze the performance of a cooperative communication network with an energy buffer-aided energy harvesting relay. We consider both fixed and adaptive-rate signalling. The relay is assumed to harvest energy from ambient sources. We consider the harvest-store-use (HSU) protocol employing best-effort or on-off policies, with both finite and infinite-size energy buffers, and analyze the outage probability and ergodic rate performance. Since it is known that using a discrete-state Markov chain to model the energy buffer is inaccurate even for moderate number of levels, we assume use of a discrete-time continuous-state space Markov chain. We do not ignore the direct channel, and assume that the direct and relayed signals are optimally combined. We compare performance of the scheme with that of harvest-use (HU) and direct (relay-less) transmission. Simulation results are presented to validate the derived analytical expressions and bring out useful insights.

[1]  Gregory W. Wornell,et al.  Cooperative diversity in wireless networks: Efficient protocols and outage behavior , 2004, IEEE Transactions on Information Theory.

[2]  Shankar Prakriya,et al.  Performance of Adaptive Link Selection With Buffer-Aided Relays in Underlay Cognitive Networks , 2016, IEEE Transactions on Vehicular Technology.

[3]  Purushottam Kulkarni,et al.  Energy Harvesting Sensor Nodes: Survey and Implications , 2011, IEEE Communications Surveys & Tutorials.

[4]  Farid Ashtiani,et al.  On the Tradeoff Between Collision and Cooperation in a Random Access Wireless Network With Energy Harvesting Nodes , 2018, IEEE Transactions on Vehicular Technology.

[5]  He Chen,et al.  Distributed resource allocation for power beacon-assisted wireless-powered communications , 2015, 2015 IEEE International Conference on Communications (ICC).

[6]  Shigenobu Sasaki,et al.  RF Energy Transfer for Cooperative Networks: Data Relaying or Energy Harvesting? , 2012, IEEE Communications Letters.

[7]  He Chen,et al.  Distributed Multi-Relay Selection in Accumulate-Then-Forward Energy Harvesting Relay Networks , 2016, IEEE Transactions on Green Communications and Networking.

[8]  Rui Zhang,et al.  Wireless powered communication networks: an overview , 2015, IEEE Wireless Communications.

[9]  Behrouz Maham,et al.  Maximizing Spectral Efficiency for Energy Harvesting-Aware WBAN , 2017, IEEE Journal of Biomedical and Health Informatics.

[10]  Shankar Prakriya,et al.  Optimization of Two-Way Relaying Networks With Battery-Assisted EH Relays , 2018, IEEE Transactions on Communications.

[11]  Robert Schober,et al.  Performance Analysis of Near-Optimal Energy Buffer Aided Wireless Powered Communication , 2017, IEEE Transactions on Wireless Communications.

[12]  Halim Yanikomeroglu,et al.  Device-to-device communication in 5G cellular networks: challenges, solutions, and future directions , 2014, IEEE Communications Magazine.

[13]  R. M. Loynes,et al.  The stability of a queue with non-independent inter-arrival and service times , 1962, Mathematical Proceedings of the Cambridge Philosophical Society.

[14]  Shankar Prakriya,et al.  Performance of a Cooperative Network with Direct Link and an Energy-Buffer Aided Relay , 2018, 2018 International Conference on Signal Processing and Communications (SPCOM).

[15]  Milton Abramowitz,et al.  Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables , 1964 .

[16]  Robert Schober,et al.  Buffer-Aided Relaying With Adaptive Link Selection—Fixed and Mixed Rate Transmission , 2012, IEEE Transactions on Information Theory.

[17]  Lajos Hanzo,et al.  Outage Analysis and Optimization in Single- and Multiuser Wireless Energy Harvesting Networks , 2016, IEEE Transactions on Vehicular Technology.

[18]  Ali A. Nasir,et al.  Relaying Protocols for Wireless Energy Harvesting and Information Processing , 2012, IEEE Transactions on Wireless Communications.

[19]  Johannes Grotendorst,et al.  Asymptotic series of generalized Lambert W function , 2014, ACCA.

[20]  Branka Vucetic,et al.  A Discrete Time-Switching Protocol for Wireless-Powered Communications with Energy Accumulation , 2014, GLOBECOM 2014.

[21]  Robert Schober,et al.  Asymptotically Optimal Power Allocation for Energy Harvesting Communication Networks , 2013, IEEE Transactions on Vehicular Technology.

[22]  Rui Zhang,et al.  Optimal Save-Then-Transmit Protocol for Energy Harvesting Wireless Transmitters , 2012, IEEE Transactions on Wireless Communications.

[23]  Liang Yin,et al.  Optimal Cooperation Strategy in Cognitive Radio Systems with Energy Harvesting , 2014, IEEE Transactions on Wireless Communications.

[24]  Sonia Aïssa,et al.  Performance Analysis of Relaying Systems With Fixed and Energy Harvesting Batteries , 2018, IEEE Transactions on Communications.

[25]  Robert Schober,et al.  On-off transmission policy for wireless powered communication with energy storage , 2014, 2014 48th Asilomar Conference on Signals, Systems and Computers.

[26]  Robert Schober,et al.  Performance analysis of wireless powered communication with finite/infinite energy storage , 2014, 2015 IEEE International Conference on Communications (ICC).

[27]  M. Abramowitz,et al.  Handbook of Mathematical Functions With Formulas, Graphs and Mathematical Tables (National Bureau of Standards Applied Mathematics Series No. 55) , 1965 .