Dynamic Time and Power Allocation for Opportunistic Energy Efficient Cooperative Relay

Heron, John; Sun, Hongjian

Abstract

Exponential growth in power consumption of wireless communication devices and lack of progress in battery capacity are increasing pressure for more energy efficient (EE) wireless networks. This paper presents an algorithm for optimum EE time allocation for two cooperative relay selection schemes: opportunistic decode-and- forward (ODF) and opportunistic energy efficiency (OEE) with and without rate constraint. By dynamically optimising transmission time between source and relay it is possible to simultaneously improve EE and minimise capacity loss. Simulation in a multi-user scenario with randomly distributed number and location of cooperative nodes demonstrates the algorithm's effectiveness for improving network performance and applicability to both dynamic and static networks. Results imply a unique globally optimum time and power allocation dependent on relay position.

Citation

Heron, J., & Sun, H. (2017). Dynamic Time and Power Allocation for Opportunistic Energy Efficient Cooperative Relay. In 2017 IEEE 86th Vehicular Technology Conference (VTC Fall) : Toronto, Canada, 24-27 September 2017 ; proceedings (1-5). https://doi.org/10.1109/vtcfall.2017.8288142

• Conference Name: IEEE 86th Vehicular Technology Conference
• Conference Location: Toronto, Canada
• Start Date: Sep 24, 2017
• End Date: Sep 27, 2017
• Acceptance Date: May 16, 2017
• Online Publication Date: Feb 12, 2018
• Publication Date: Sep 27, 2017
• Deposit Date: May 18, 2017
• Publicly Available Date: May 19, 2017
• Publisher: Institute of Electrical and Electronics Engineers
• Pages: 1-5
• Book Title: 2017 IEEE 86th Vehicular Technology Conference (VTC Fall) : Toronto, Canada, 24-27 September 2017 ; proceedings.
• ISBN: 9781509059362
• DOI: https://doi.org/10.1109/vtcfall.2017.8288142