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Distributed Opportunistic Wireless Channel Access in Decode-and-Forward Relay Networks

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DOI

https://doi.org/10.7939/R30C4SW86

Date

2015-11

Author

Zhou, Shuai

Institution

http://id.loc.gov/authorities/names/n79058482

Degree Level

Master's

Degree

Master of Science

Department

Department of Electrical and Computer Engineering

Specialization

Communications

Supervisor / Co-Supervisor and Their Department(s)

Jiang, Hai Department of Electrical and Computer Engineering

Examining Committee Member(s) and Their Department(s)

Khabbazian, Majid Department of Electrical and Computer Engineering
Zhao, Vicky Department of Electrical and Computer Engineering

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Abstract

The main goal of this thesis is to develop an opportunistic scheduling strategy in distributed networks with decode-and-forward (DF) relays without direct link. Two cases are considered: 1) the winner source has full CSI (CSI of source-relay link and relay-destination link), 2) the winner source has partial CSI (CSI of source-relay link only). For the first case, a pure threshold scheduling strategy is proposed. Specifically, only when the minimum of the detected signal-to-noise ratio (SNR) of the source-relay link and relay-destination link exceeds a certain threshold, it is optimal for the source to transmit data. For the second case, the scheduling strategy is also threshold-based. In specific, when the detected SNR of the source-relay link exceeds a certain threshold, it is optimal for the winner source to transmit data. After the relay receives the data, the optimal strategy is probing the second hop until the second-hop channel condition is good.

Item Type

http://purl.org/coar/resource_type/c_46ec

Title

Distributed Opportunistic Wireless Channel Access in Decode-and-Forward Relay Networks

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This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.

Subject/Keywords

Decode-and-forward relaying
Optimal stopping
Opportunistic transmission
Throughput maximization

Language

en

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