Resource allocation for real-time and non-real-time traffic in wireless networks

  • Authors:

  • Show-Shiow Tzeng

  • Affiliations:

  • Department of Optoelectronics and Communication Engineering, National Kaohsiung Normal University, Kaohsiung 802, Taiwan, ROC

  • Venue:
  • Computer Communications
  • Year:
  • 2006

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Abstract

Next generation wireless networks are expected to support heterogeneous traffic, which can be classified into real-time and non-real-time traffic. Movable-boundary schemes [1-5], which are resource allocation schemes, for real-time and non-real-time traffic have been studied to increase the utilization of channels. In the schemes, non-real-time channels cannot be lent to real-time users. Adaptive applications, in which the channels allocated to a real-time user can be adjusted during the user's connection time, have been discussed in [6-17].. This paper proposes a movable-boundary resource allocation scheme for real-time and non-real-time traffic in wireless networks with adaptive applications. The proposed movable-boundary scheme allows real-time users to borrow non-real-time channels, in order to improve the quality of services of real-time users. The movable-boundary scheme is compared with a fixed-boundary scheme, in which non-real-time channels are not lent to real-time users. An analysis is developed to analyze the performance of the movable-boundary and fixed-boundary schemes. Simulations are also performed to verify the accuracy of the analysis. Numerical and simulation results show that the proposed movable-boundary scheme increases the quality of services of real-time users and channel utilization than the fixed-boundary scheme.