中文摘要：

分析了无线区域网（WRAN）中认知基站与无线麦克风（WM）之间和认知无线电用户与WM之间的干扰，在此基础上建立了一种新的WRAN与WM的共存模型；以最大化系统下行链路速率为目标，给出了WRAN单小区中信道分配的数学模型．为了快速求解这一混合整数规划问题，将信道分配问题等效为二部图中的最大匹配问题，运用图论中的匈牙利算法求得问题的最优解．仿真结果表明了新方法的有效性．

英文摘要：

A new wireless regional area network （WRAN）-wireless microphone （WM） coexistence model is established based on analysis of interference between base station and WM, consumer premise equipments and WM for WRAN. In order to maximize the downlink data transmission rate, a new sub- channel allocation of a single cell in WRAN is modeled as a mixed-integer nonlinear programming problem, that is equivalent to find the maximum matching graph of the bipartite graph. Hungarian algorithm of graph theory is here employed to get the optimal solution. Simulation results show its effectiveness.