test
server time: root: http://itiis.org
current_path: /journals/tiis/digital-library/21212
current_url: http://itiis.org/journals/tiis/digital-library/21212
A Utility-Based and QoS-Aware Power Control Scheme for Wireless Body Area Networks
  • KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

A Utility-Based and QoS-Aware Power Control Scheme for Wireless Body Area Networks

Vol. 10, No. 9, September 29, 2016
10.3837/tiis.2016.09.009, Download Paper (Free):

Abstract

Power control is widely used to reduce co-channel interference in wireless networks and guarantee the signal-to-interference plus noise ratio (SINR) of ongoing connections. This technique is also effective for wireless body area networks (WBANs). Although achieving satisfactory SINR is important for WBAN users, they may not be willing to achieve it at arbitrarily high power levels since power is a scarce resource in WBANs. Besides, for WBANs with different purposes, the QoS requirements and concern about the power consumption may be different. This motivates us to formulate the power control problem using the concepts from microeconomics and game theory. In this paper, the QoS objective is viewed as a utility function, which represents the degree of user satisfaction, while the power consumption is viewed as a cost function. The power control problem consequently becomes a non-cooperative multiplayer game, in which each player tries to maximize its net utility, i.e., the utility minus the cost. Within this framework, we investigate the Nash equilibrium existence and uniqueness in the game and derive the best response solution to reach the Nash equilibrium. To obtain the optimal transmission power in a distributed way, we further propose a utility-based and QoS-aware power control algorithm (UQoS-PCA). Tunable cost coefficient in UQoS-PCA enables this scheme to be flexible to satisfy diverse service requirements. Simulation results show the convergence and effectiveness of the proposed scheme as well as improvements over existing algorithm.


Statistics

Show / Hide Statistics

Statistics (Cumulative Counts from December 1st, 2015)
Multiple requests among the same browser session are counted as one view.
If you mouse over a chart, the values of data points will be shown.


Cite this article

[IEEE Style]
Y. Li, J. Pan and X. Tian, "A Utility-Based and QoS-Aware Power Control Scheme for Wireless Body Area Networks," KSII Transactions on Internet and Information Systems, vol. 10, no. 9, pp. 4188-4206, 2016. DOI: 10.3837/tiis.2016.09.009.

[ACM Style]
Yanjun Li, Jian Pan, and Xianzhong Tian. 2016. A Utility-Based and QoS-Aware Power Control Scheme for Wireless Body Area Networks. KSII Transactions on Internet and Information Systems, 10, 9, (2016), 4188-4206. DOI: 10.3837/tiis.2016.09.009.