Title :
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
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;
Conference_Titel :
Communication Software and Networks (ICCSN), 2011 IEEE 3rd International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-61284-485-5
DOI :
10.1109/ICCSN.2011.6013626
