Journal of Xidian University ›› 2016, Vol. 43 ›› Issue (2): 162-167.doi: 10.3969/j.issn.1001-2400.2016.02.028

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Energy-aware resource allocation for underlaid D2D multicast

WANG Yuan1;ZHAO Jihong1,2;TANG Rui2;QU Hua2;DONG Jiaojiao1   

  1. (1. School of Communication and Information Engineering, Xi'an Univ. of Posts & Telecommunication, Xi'an  710061, China;
    2. School of Electronics and Information Engineering, Xi'an Jiaotong Univ., Xi'an  710049, China)
  • Received:2015-01-01 Online:2016-04-20 Published:2016-05-27
  • Contact: WANG Yuan E-mail:1946495826@qq.com

Abstract:

The Device-to-Device (D2D) communication underlaying cellular network is a promising component to improve the spectral efficiency for the system and lower down energy consumption for mobile terminals. Besides, in the D2D-aided content delivery scenario, it is potential to enhance the system capacity and individual quality-of-service (QoS) experience when D2D multicast is further enabled, but due to the battery-driven feature of mobile relays and the co-channel interference between cellular and D2D links, the optimization of energy conservation should be addressed. So, we propose a bipartite graph based resource allocation to minimize the total power consumption at the mobile relays under the individual QoS requirement by incorporating channel assignment and power control, and we also leverage the optimization of energy saving for system capacity.

Key words: device-to-device multicast, mobile relay, energy-saving, system capacity, resource allocation, bipartite graph