An uplink resource allocation strategy in heterogeneous  networks based on WLAN

doi:10.3969/j.issn.0253-2778.2014.04.001

Journal of University of Science and Technology of China ›› 2014, Vol. 44 ›› Issue (4): 259-264.DOI: 10.3969/j.issn.0253-2778.2014.04.001

• Original Paper •

An uplink resource allocation strategy in heterogeneous networks based on WLAN

WEN Chunyang, QIU Ling

Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei 230027, China

Received:2013-08-20 Revised:2013-12-27 Accepted:2013-12-27 Online:2013-12-27 Published:2013-12-27

Abstract

Abstract: WLAN can provide high data rates for users, which is an effective complement to traditional cells in heterogeneous networks. However, resource management in WLAN is different from the central allocation of cellular networks, where exist collision and performance anomaly. A maximizing utility function problem was formulated, which allowed for the collision and performance anomaly in WLAN. Due to the non-convexity of constraints, the problem could not be solved directly. Poisson approximation of binominal distribution and the relationship between user number and collision probability were used to transform it into a convex problem. A distributed algorithm was proposed to optimally allocate resources between networks. Simulation results show that it can significantly enhance system performance and improve the utilization of WLAN.

Key words: WLAN, heterogeneous networks, performance anomaly, uplink resource allocation

CLC Number:

TN929.5

WEN Chunyang, QIU Ling. An uplink resource allocation strategy in heterogeneous networks based on WLAN[J]. Journal of University of Science and Technology of China, 2014, 44(4): 259-264.

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An uplink resource allocation strategy in heterogeneous networks based on WLAN

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