Abstract
In this paper, we consider two-hop multi-input multi-output (MIMO) relay wireless systems with energy harvesting. In each hop, transmit antenna selection (TAS)/receive antenna selection (RAS), TAS/maximum ratio combining (MRC), or maximum ratio transmission (MRT)/RAS is employed. Also, a relay harvests energy from the source via either a time switching-based relaying protocol (TSR) or a power splitting-based relaying protocol (PSR). We perform unified analysis of the resulting eighteen system configurations over Nakagami-m fading channels. Specifically, we derive exact and approximated closed-form expressions for ergodic capacity and throughput. Moreover, optimal energy-harvesting time (in TSR-based system) and optimal power-splitting ratio (in PSR-based system) to achieve maximum throughput at high signal-to-noise-ratio (SNR) are analyzed. Impacts of various MIMO processing schemes and energy harvesting mechanisms on the system performance are also examined and discussed. The theoretical analysis is corroborated by simulations.
Original language | English |
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Title of host publication | Proceedings of the 2017 International Conference on Recent Advances in Signal Processing, Telecommunications & Computing (SigTelCom), January 9 - 11, 2017, Danang, Vietnam |
Publisher | IEEE |
Pages | 164-169 |
Number of pages | 6 |
ISBN (Print) | 9781509022915 |
DOIs | |
Publication status | Published - 2017 |
Event | International Conference on Recent Advances in Signal Processing_Telecommunications & Computing - Duration: 9 Jan 2017 → … |
Conference
Conference | International Conference on Recent Advances in Signal Processing_Telecommunications & Computing |
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Period | 9/01/17 → … |