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Performance analysis of multi-hop diversity aided multi-hop links

Performance analysis of multi-hop diversity aided multi-hop links
Performance analysis of multi-hop diversity aided multi-hop links
A multi-hop transmission scheme is proposed and studied, where all the relay nodes (RNs) of a multi-hop link (MHL) are assumed to have buffers for temporarily storing their received packets. Hence, the RNs are operated under the so-called store-and-forward (SF) relaying scheme. As a benefit of storing packets at the RNs, during each time-slot (TS), the best hop typically has the highest signal to-noise ratio (SNR), which can be selected from the set of those hops that have packets awaiting transmission in the buffer.A packet is then transmitted over the best hop. This hop-selection procedure is reminiscent of selection (SC) diversity, which is referred to here as multi-hop diversity (MHD). In this paper, we investigate both the bit error and outage probability as well as the delay performance of the MHD scheme, when assuming that each hop experiences both propagation pathloss and independent identically distributed (i.i.d) flat Rayleigh fading. The MAC layer implementation and several closed-form formulas are derived. Both numerical and simulation results are provided for characterizing the achievable performance of the MHD scheme. Our performance results 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 multi-hop communications.
0018-9545
2504-2516
Dong, Chen
60381118-c1b8-4c06-aa2c-338413246519
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Dong, Chen
60381118-c1b8-4c06-aa2c-338413246519
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Dong, Chen, Yang, Lie-Liang and Hanzo, Lajos (2012) Performance analysis of multi-hop diversity aided multi-hop links. IEEE Transactions on Vehicular Technology, 61 (6), 2504-2516. (doi:10.1109/TVT.2012.2196301).

Record type: Article

Abstract

A multi-hop transmission scheme is proposed and studied, where all the relay nodes (RNs) of a multi-hop link (MHL) are assumed to have buffers for temporarily storing their received packets. Hence, the RNs are operated under the so-called store-and-forward (SF) relaying scheme. As a benefit of storing packets at the RNs, during each time-slot (TS), the best hop typically has the highest signal to-noise ratio (SNR), which can be selected from the set of those hops that have packets awaiting transmission in the buffer.A packet is then transmitted over the best hop. This hop-selection procedure is reminiscent of selection (SC) diversity, which is referred to here as multi-hop diversity (MHD). In this paper, we investigate both the bit error and outage probability as well as the delay performance of the MHD scheme, when assuming that each hop experiences both propagation pathloss and independent identically distributed (i.i.d) flat Rayleigh fading. The MAC layer implementation and several closed-form formulas are derived. Both numerical and simulation results are provided for characterizing the achievable performance of the MHD scheme. Our performance results 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 multi-hop communications.

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Accepted/In Press date: 25 April 2012
Published date: 10 July 2012
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 339186
URI: http://eprints.soton.ac.uk/id/eprint/339186
ISSN: 0018-9545
PURE UUID: 49c51f13-d798-402c-a79e-4ccac52314ae
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: 24 May 2012 14:07
Last modified: 17 Dec 2019 02:03

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Contributors

Author: Chen Dong
Author: Lie-Liang Yang ORCID iD
Author: Lajos Hanzo ORCID iD

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