中文摘要：

为了最小化能量受限的协作蜂窝小区的总代价，提出了上行链路的功率和中继等资源分配的模型．该模型是一个非线性约束、（0，1）组合优化问题，因而提出了一种自适应的资源分配方案对其求解．针对给定中继节点集合，该方案分别为每个源节点选择总代价最小的中继；而对于给定源和中继对，提出了最小化二者总代价的基于图论的最优功率分配算法．通过仿真和分析表明，该方案近似最优，能够发送更多的数据量，延长网络的寿命．

英文摘要：

An assignment model of uplink resources, namely, power and relay, is proposed to minimize the total cost of energy-constrained cooperative networks. The model is a non-linear constraint, 0-1 integer programmirtg problem. An adaptive resource allocation scheme is presented to solve it, which selects the relay with the lowest total cost {or each source from the given relay set. A graphic-theory-based optimal power allocation algorithm is presented to minimize their total cost for a given source-relay pair. Simulation and analysis show that the scheme is suboptimal and can transmit more data than other algorithms and prolong network lifetime.