CAJ | 학술논문

无线Ad hoc网络中，网络容量主要依赖于网络的空间复用度以及由于节点并发所造成的累积干扰。文章首先分析了网络的空间复用与干扰对于网络容量的影响，将网络容量映射为网络的空间复用以及网络中存在的干扰的相互作用的函数。并进一步基于安全载波监听的概念，提出了一种空间复用提升以及干扰避免的节点数据发送策略。该策略能够根据网络当中存在的干扰动态地调整节点的发送方式，在提高网络空间复用的同时控制网络当中存在的干扰，从而达到网络性能优化的目的。理论分析以及仿真实验都证实了我们的策略能够有效的提高无线Ad Hoc网络的吞吐量，优化网络性能。
무선Ad hoc망락중，망락용량주요의뢰우망락적공간복용도이급유우절점병발소조성적루적간우。문장수선분석료망락적공간복용여간우대우망락용량적영향，장망락용량영사위망락적공간복용이급망락중존재적간우적상호작용적함수。병진일보기우안전재파감은적개념，제출료일충공간복용제승이급간우피면적절점수거발송책략。해책략능구근거망락당중존재적간우동태지조정절점적발송방식，재제고망락공간복용적동시공제망락당중존재적간우，종이체도망락성능우화적목적。이론분석이급방진실험도증실료아문적책략능구유효적제고무선Ad Hoc망락적탄토량，우화망락성능。
In wireless Ad Hoc networks, network capacity mainly relies on the degree of network spatial reuse and the cumulative interference caused by simultaneous transmissions among wireless nodes. In this paper, we first analyze the impact of network spatial reuse and cumulative interference on network capacity. And then, we map the network capacity as the function of 他and the interaction between network spatial reuse and interference. Furthermore, based on the concept of the safe-carrier sensing range, we propose a transmission scheme to improve network spatial reuse and avoid interference. The proposed scheme can adjusts node's transmission mode dynamically, so as to control the interference existing in the network while improving the spatial reuse in the network, leading to the optimization of network performance. Theoretical analysis and simulations prove that the proposed scheme can improve the throughput and performance of the Ad Hoc network effectively.