Subchannel allocation based on graph theory in a single cell of WRAN

Author

Liu, Yingting ; Zhang, Hailin ; Lu, Xiaofeng ; Liu, Shuhua

Author_Institution

State Key Lab. of ISN, Xidian Univ., Xi´´an, China

fYear

2011

fDate

27-29 May 2011

Firstpage

426

Lastpage

429

Abstract

Based on the analysis of the interference between the Base Station (BS) to wireless microphones (WMs) and Consumer Premise Equipments (CPEs) to WMs in Wireless Regional Area Network (WRAN), a new WRAN-WM coexistence model is proposed. A mathematical model of subchannel allocation in a single cell of WRAN is established which target is maximizing the data transmission rate for downlink of system. Modeling the subchannel allocation as finding a maximal matching of the bipartite graph, we get the optimal solution to employ hungarian algorithm to solve the problem which is a mixed-integer nonlinear programming. The simulation results show that the proposed scheme is very effective.

Keywords

channel allocation; graph theory; integer programming; interference (signal); metropolitan area networks; microphones; nonlinear programming; WRAN-WM coexistence model; base station; bipartite graph; consumer premise equipments; data transmission rate; graph theory; hungarian algorithm; interference; mixed-integer nonlinear programming; subchannel allocation; wireless microphones; wireless regional area network; Bipartite graph; Downlink; Interference; Mathematical model; Resource management; TV; Wireless communication; WRAN; channel allocation; cognitive radio; graph theory; hungarian algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Software and Networks (ICCSN), 2011 IEEE 3rd International Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-61284-485-5

Type

conf

DOI

10.1109/ICCSN.2011.6013626

Filename

6013626