CAJ | 학술논문

在无线网络中使用网络编码可以提高吞吐量和降低能耗.近来，有许多工作在研究如何利用网络编码来提高吞吐量，但是很少有考虑到 QoS.本文重点研究在实时无线网络中数据包在延时约束条件下，网络编码的广播调度问题，目标是在数据包的误时率(deadline miss ratio)容许范围内，减少重传包的数量.我们将综合两种编码调度方案，阐释各自的优劣，动态地选取编码方案.仿真结果显示，我们的算法可以有效减少重传包的数量.
재무선망락중사용망락편마가이제고탄토량화강저능모.근래，유허다공작재연구여하이용망락편마래제고탄토량，단시흔소유고필도 QoS.본문중점연구재실시무선망락중수거포재연시약속조건하，망락편마적엄파조도문제，목표시재수거포적오시솔(deadline miss ratio)용허범위내，감소중전포적수량.아문장종합량충편마조도방안，천석각자적우렬，동태지선취편마방안.방진결과현시，아문적산법가이유효감소중전포적수량.
Using network coding in wireless networks can increase throughput and reduce energy consumption. Recently there are many works focusing on how to utilize network coding to increase throughput while there are few works considering the quality of service . This paper focuses on network coding based broadcast scheduling in wireless networks with the packet delay constraint and aims at minimizing the number of retransmissions. We will combine two encoding and scheduling schemes, analyze their respective advantages and disadvantages, and dynamically select the scheme. Simulation results show that our algorithm can reduce the number of retransmissions.