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Optimum Time Resource Allocation for TDMA-Based Differential Decode-and-Forward Cooperative Systems: A Capacity Perspective

Optimum Time Resource Allocation for TDMA-Based Differential Decode-and-Forward Cooperative Systems: A Capacity Perspective
Optimum Time Resource Allocation for TDMA-Based Differential Decode-and-Forward Cooperative Systems: A Capacity Perspective
It is widely recognized that differential decode-and-forward (DDF) cooperative transmission schemes are capable of achieving a cooperative diversity gain, while circumventing the potentially excessive-complexity and yet inaccurate channel estimation, especially in mobile environments. In this letter, we find the optimum transmit-interval duration for the source and relay, which is commensurate with their adaptive channel-code rate in the context of TDMA-based DDF-aided half-duplex systems for the sake of maximizing the achievable network throughput. We also demonstrate from a pure capacity perspective, in what scenarios the introdution of cooperation improves the achievable throughput.
Wang, Li
f54669eb-8e6b-43ea-a6df-47cda21d6950
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Wang, Li
f54669eb-8e6b-43ea-a6df-47cda21d6950
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Wang, Li and Hanzo, Lajos (2010) Optimum Time Resource Allocation for TDMA-Based Differential Decode-and-Forward Cooperative Systems: A Capacity Perspective IEEE Communications Letters

Record type: Article

Abstract

It is widely recognized that differential decode-and-forward (DDF) cooperative transmission schemes are capable of achieving a cooperative diversity gain, while circumventing the potentially excessive-complexity and yet inaccurate channel estimation, especially in mobile environments. In this letter, we find the optimum transmit-interval duration for the source and relay, which is commensurate with their adaptive channel-code rate in the context of TDMA-based DDF-aided half-duplex systems for the sake of maximizing the achievable network throughput. We also demonstrate from a pure capacity perspective, in what scenarios the introdution of cooperation improves the achievable throughput.

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Submitted date: 3 March 2010
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 268573
URI: https://eprints.soton.ac.uk/id/eprint/268573
PURE UUID: d7a9ce46-7c8d-455a-9bcb-4750ba75e87b
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

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Date deposited: 03 Mar 2010 21:41
Last modified: 18 Jul 2017 06:52

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Contributors

Author: Li Wang
Author: Lajos Hanzo ORCID iD

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