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To Cooperate or Not: A Capacity Perspective

To Cooperate or Not: A Capacity Perspective
To Cooperate or Not: A Capacity Perspective
It is widely recognized that differential decode-and-forward (DDF) cooperative transmission scheme is capable of providing a superior performance compared to classic direct transmissions employing differential detection, where no channel coding is used. However, the diversity gains achieved by the cooperative system become modest in practical channel coded scenarios, where the interleaving and channel coding gains dominate. Therefore, when a cooperative wireless communication system is designed to approach the maximum achievable spectral efficiency by taking the cooperation-induced multiplexing loss into account, it is not obvious, whether or not the relay-aided system becomes superior to its direct-transmission based counterpart, especially, when advanced channel coding techniques are employed. Hence in this paper the capacity of the single-relay-assisted DDF based cooperative system was studied in comparison to that of its direct-transmission based counterpart in order to answer the above-mentioned dilemma.
Wang, Li
f54669eb-8e6b-43ea-a6df-47cda21d6950
Kong, Lingkun
e5bec724-e074-4808-9a18-2e49bfd94c6b
Ng, Soon
e19a63b0-0f12-4591-ab5f-554820d5f78c
Hanzo, Lajos
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Wang, Li
f54669eb-8e6b-43ea-a6df-47cda21d6950
Kong, Lingkun
e5bec724-e074-4808-9a18-2e49bfd94c6b
Ng, Soon
e19a63b0-0f12-4591-ab5f-554820d5f78c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Wang, Li, Kong, Lingkun, Ng, Soon and Hanzo, Lajos (2009) To Cooperate or Not: A Capacity Perspective. VTC 2010 Spring. 16 - 19 May 2010. (Submitted)

Record type: Conference or Workshop Item (Paper)

Abstract

It is widely recognized that differential decode-and-forward (DDF) cooperative transmission scheme is capable of providing a superior performance compared to classic direct transmissions employing differential detection, where no channel coding is used. However, the diversity gains achieved by the cooperative system become modest in practical channel coded scenarios, where the interleaving and channel coding gains dominate. Therefore, when a cooperative wireless communication system is designed to approach the maximum achievable spectral efficiency by taking the cooperation-induced multiplexing loss into account, it is not obvious, whether or not the relay-aided system becomes superior to its direct-transmission based counterpart, especially, when advanced channel coding techniques are employed. Hence in this paper the capacity of the single-relay-assisted DDF based cooperative system was studied in comparison to that of its direct-transmission based counterpart in order to answer the above-mentioned dilemma.

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More information

Submitted date: 14 October 2009
Venue - Dates: VTC 2010 Spring, 2010-05-16 - 2010-05-19
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 268049
URI: https://eprints.soton.ac.uk/id/eprint/268049
PURE UUID: 123222ac-ac8c-4b8b-b052-86e7e6ac5a51
ORCID for Soon Ng: ORCID iD orcid.org/0000-0002-0930-7194
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 14 Oct 2009 14:43
Last modified: 06 Jun 2018 13:15

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Contributors

Author: Li Wang
Author: Lingkun Kong
Author: Soon Ng ORCID iD
Author: Lajos Hanzo ORCID iD

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