调制速率对放大转发MQAM中继链路能效性能的影响

doi:10.3969/j.issn.0255-8297.2016.01.003

Journal of Applied Sciences ›› 2016, Vol. 34 ›› Issue (1): 22-29.doi: 10.3969/j.issn.0255-8297.2016.01.003

• Communication Engineering • Previous Articles Next Articles

Impact of Modulation Rate on Energy Efficiency of Amplify-and-Forward Relay Transmission Links

CHEN Fang-fang^1,2, WANG Tao^1,2

1. Key Laboratory of Special Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200072, China;
2. School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China

Received:2014-11-08 Revised:2015-04-28 Online:2016-01-30 Published:2016-01-30

Abstract

Abstract: The influence of modulation rate on energy efficiency (EE) for a source-relayterminal communication link using the amplify-and-forward (AF) protocol and MQAM is studied given a prescribed error rate (BER). Transmission power consumption is calculated. The total power consumption is obtained when the circuit power consumption is taken into account. An expression of EE is derived, and the influence of modulation rate on EE studied. Simulation results show that, with the modulation rate increasing, energy efficiency increases first, and then decreases.

Key words: energy efficiency, modulation rate, amplify-and-forward relay

CLC Number:

TN925

CHEN Fang-fang, WANG Tao. Impact of Modulation Rate on Energy Efficiency of Amplify-and-Forward Relay Transmission Links[J]. Journal of Applied Sciences, 2016, 34(1): 22-29.

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Impact of Modulation Rate on Energy Efficiency of Amplify-and-Forward Relay Transmission Links

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