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Joint Power Control and Scheduling for Two-Cell Energy Efficient Broadcasting with Network Coding
Dept. of Electronic Engineering, City University of Hong Kong, Hong Kong SAR
Dept. of Electronic Engineering, City University of Hong Kong, Hong Kong SAR
School of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea
- 1 Dept. of Electronic Engineering, City University of Hong Kong, Hong Kong SAR
- 2 Dept. of Electronic Engineering, City University of Hong Kong, Hong Kong SAR
- 3 School of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea
Communications and Network·Volume 05 (2013)·Pages 312–318·Published 27 September 2013·DOI10.4236/cn.2013.53B2058
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Abstract
We consider the energy minimization problem for a two-cell broadcasting system, where the focus is devising energy efficient joint power control and scheduling algorithms. To improve the retransmission efficiency, linear network coding is applied to broadcast packets. Combined with network coding, an optimal algorithm is proposed, which is based on dynamic programming. To reduce computational complexity, two sub-optimal algorithms are also proposed for large networks. Simulation results show that the proposed schemes can reduce energy consumption up to 57% compared with the traditional Automatic Repeat-reQuest (ARQ).
KeywordsPower ControlNetwork CodingBroadcastSchedulingEnergy Minimization
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