自组织异构网络中的资源优化配置

针对自组织异构网络中的资源优化问题，考虑网络能量效率和网络连接稳定性，提出了一种资源配置方案.该方案分为3步，首先能感知周围环境获取信道资源，并将信道纳入可用信道频谱池；其次通过基于莫尔斯势能的用户选择机制，保证网络连接的稳定性，同时降低数据传输功率损耗；最后在前2步的基础上，以提高网络能量效率为目标为用户分配功率.选择过程中按照莫尔斯势能值对用户进行排序，优先选取具有较低势能值的用户提供服务，而功率配置过程由障碍法完成.结果表明，所提出的方案能节省数据传输功率损耗，保证网络连接的稳定性，并优化能量效率.

Resource Optimization in Self-Organized Heterogeneous Network

To solve the resource optimization problem in self-organized heterogeneous networks,a resource configuration scheme is proposed. The novel scheme takes energy efficiency and connection stability of the network into account. This scheme includes three steps. Firstly,obtain the available channel resource through exploiting surrounding environment and then put the channels into the spectrum pool. Secondly,design user selection method on the basis of Morse potential which can guarantee network connectivity and reduce the transmission power cost. Finally,utilizing the results from the two former two steps,allocate proper power level to users while optimizing network energy efficiency. In the step of user selection,users are sorted according to the Morse potential and the ones with smaller morse potential value are selected and served with high priority. Power allocation is achieved by Barrier method. Simulation results show the advantage of the proposed scheme which can save transmission cost,guarantee stable network connectivity and gain higher energy efficiency.