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Using Buffers in Trust Aware Relay Selection Networks with Spatially Random Relays

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posted on 15.01.2019, 14:09 by Yu Gong, Gaojie Chen, Tian Xie
IEEE It is well recognized that using buffers in relay networks significantly improves the transmission reliability, which is often at the price of higher packet delay. Existing buffer-aided relay networks are all based on the physical links among cooperative nodes. This may however lead to performance degradation in practice, because that cooperative nodes may not trust each other for cooperation even though their physical connection are strong. In this paper, we propose a novel buffer-aided relay selection scheme to align data transmission with both strong and trusted links. By maintaining the buffer lengths as close as possible to the newly introduced target buffer lengths, the proposed scheme is able to balance the outage performance and packet delay. Both the outage probability and average packet delay are analyzed for spatially random relays. Particularly we show that outage performance may have error floors because of the trusts. The analysis shows that using buffers in trust aware relay networks is able to either increase the diversity order or lower the error floor of the outage probability.

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Citation

IEEE Transactions on Wireless Communications, 17 (9), 2018, pp. 5818-5826

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Engineering

Version

AM (Accepted Manuscript)

Published in

IEEE Transactions on Wireless Communications

Publisher

IEEE

issn

1536-1276

Copyright date

2018

Available date

15/01/2019

Publisher version

https://ieeexplore.ieee.org/document/8411458

Language

en

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