Joint MCS and power allocation for SVC video multicast over heterogeneous cellular networks

Jie Li, Zhongming Bao, Chenxiang Zhang, Qiyue Li, Zhi Liu

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Scalable video coding (SVC) and adaptive modulation and coding (AMC) are key issues for video multicast in broadband wireless networks, which could improve users' received video quality by encoding the video stream into different layers and assigning appropriate modulation and coding schemes (MCSs) to each layer. With the development of mobile communication, various types of cellular networks such as 4. G LTE and 3. G co-exist at the same place. This type of network is named heterogeneous cellular networks in this paper. Given one ISP usually owns different types of base stations (BSs) at the same place and different BSs may have different traffic loads and transmission capabilities, cooperative transmission among the heterogeneous BSs becomes possible, e.g. a 4. G LTE BS could help offload a 3. G BS if the 4. G LTE BS has extra bandwidth and the devices have the corresponding network interface. As far as the authors understand, how to schedule this cooperation has not been solved in any formal way in literature. This paper presents a joint MCS and power allocation problem in multi-base-station heterogeneous cellular networks for SVC video multicast with the objective to maximize the defined system utility. This problem is NP-hard and in order to solve this, we first decompose this problem into two sub-problems. We present a dynamic programming algorithm to optimize the problem without optimizing the power allocation. Then we take power allocation for each sub-channel into account and propose a multi-base joint dynamic programming and greedy algorithm (MDPGA) algorithm for this joint power and MCS allocation problem in heterogeneous cellular networks. Simulation results show that our algorithms can outperform other competing schemes significantly.

Original languageEnglish
JournalComputer Communications
DOIs
Publication statusAccepted/In press - 2015 Sep 24

Fingerprint

Scalable video coding
Base stations
Modulation
Dynamic programming
Adaptive modulation
Interfaces (computer)
Computational complexity
Wireless networks
Bandwidth
Communication

Keywords

  • Adaptive modulation and coding
  • Heterogeneous networks
  • Multi-base-station
  • Power allocation
  • Scalable video multicast

ASJC Scopus subject areas

  • Computer Networks and Communications

Cite this

Joint MCS and power allocation for SVC video multicast over heterogeneous cellular networks. / Li, Jie; Bao, Zhongming; Zhang, Chenxiang; Li, Qiyue; Liu, Zhi.

In: Computer Communications, 24.09.2015.

Research output: Contribution to journalArticle

Li, Jie ; Bao, Zhongming ; Zhang, Chenxiang ; Li, Qiyue ; Liu, Zhi. / Joint MCS and power allocation for SVC video multicast over heterogeneous cellular networks. In: Computer Communications. 2015.
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