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Multihop Diversity for Fading Mitigation in Multihop Wireless Networks

Multihop Diversity for Fading Mitigation in Multihop Wireless Networks
Multihop Diversity for 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 that have packets awaiting transmission in the buffer. The packet is then transmitted over the best hop. This hop-selection procedure yields selection diversity, but it requires the global channel knowledge of the hops’ channel quality. 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. 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.
Dong, Chen
dac9f067-33fb-47a2-b789-b3d131d8d866
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Dong, Chen
dac9f067-33fb-47a2-b789-b3d131d8d866
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Dong, Chen, Yang, Lie-Liang and Hanzo, Lajos (2011) Multihop Diversity for Fading Mitigation in Multihop Wireless Networks. VTC2011-Fall, United States. 05 - 08 Sep 2011.

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 that have packets awaiting transmission in the buffer. The packet is then transmitted over the best hop. This hop-selection procedure yields selection diversity, but it requires the global channel knowledge of the hops’ channel quality. 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. 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: September 2011
Additional Information: Event Dates: 5-8 September 2011
Venue - Dates: VTC2011-Fall, United States, 2011-09-05 - 2011-09-08
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 272492
URI: http://eprints.soton.ac.uk/id/eprint/272492
PURE UUID: 271c6619-9d1c-4637-ac08-d37b4acb18ce
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

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Date deposited: 17 Jun 2011 21:13
Last modified: 20 Jul 2019 01:26

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