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Multihop Diversity - A Precious Source of Fading Mitigation in Multihop Wireless Networks

Multihop Diversity - A Precious Source of Fading Mitigation in Multihop Wireless Networks
Multihop Diversity - A Precious Source of Fading Mitigation in Multihop Wireless Networks
The concept of multihop diversity is proposed, where all the nodes of a multihop link are assumed to have buffers for temporarily storing their received packets. During each time-slot, the best hop having, for example, the highest signal-to-noise ratio (SNR), is selected from the set of those hops, where the corresponding nodes have packets awaiting transmission in their buffer. The packet is then transmitted over the best hop. Explicitly, this hop-selection procedure yields selection diversity. In this paper, we assume having perfect channel knowledge and focus our attention on the principles and performance bounds of the error probability and outage probability, when M -ary quadrature amplitude modulation (MQAM) is employed. The error probability and outage probability of the multihop links operated under our proposed multihop diversity scheme are investigated, when communicating over Rayleigh fading channels. Our studies show that relying on multiple hops has the potential of providing a significant diversity gain, which may be exploited for enhancing the reliability of wireless multihop communications.
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Dong, Chen
dac9f067-33fb-47a2-b789-b3d131d8d866
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Dong, Chen
dac9f067-33fb-47a2-b789-b3d131d8d866
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Yang, Lie-Liang, Dong, Chen and Hanzo, Lajos (2011) Multihop Diversity - A Precious Source of Fading Mitigation in Multihop Wireless Networks. GLOBECOM 2011, United States. 05 - 09 Dec 2011. (doi:10.1109/GLOCOM.2011.6133945).

Record type: Conference or Workshop Item (Paper)

Abstract

The concept of multihop diversity is proposed, where all the nodes of a multihop link are assumed to have buffers for temporarily storing their received packets. During each time-slot, the best hop having, for example, the highest signal-to-noise ratio (SNR), is selected from the set of those hops, where the corresponding nodes have packets awaiting transmission in their buffer. The packet is then transmitted over the best hop. Explicitly, this hop-selection procedure yields selection diversity. In this paper, we assume having perfect channel knowledge and focus our attention on the principles and performance bounds of the error probability and outage probability, when M -ary quadrature amplitude modulation (MQAM) is employed. The error probability and outage probability of the multihop links operated under our proposed multihop diversity scheme are investigated, when communicating over Rayleigh fading channels. Our studies show that relying on multiple hops has the potential of providing a significant diversity gain, which may be exploited for enhancing the reliability of wireless multihop communications.

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More information

Published date: December 2011
Venue - Dates: GLOBECOM 2011, United States, 2011-12-05 - 2011-12-09
Organisations: Electronics & Computer Science

Identifiers

Local EPrints ID: 273056
URI: http://eprints.soton.ac.uk/id/eprint/273056
PURE UUID: f513db6a-8874-41a5-87d8-8f33ace5419b
ORCID for Lie-Liang Yang: ORCID iD orcid.org/0000-0002-2032-9327
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 12 Dec 2011 12:06
Last modified: 22 Oct 2019 00:57

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