CAJ | 학술논문

针对异构无线网络,提出一种基于前向纠错(FEC)编码的多接入传输分集方法,以获取多接入分集增益.该方法将前向纠错编码与并行多接入传输进行联合设计,编码后的分组包根据传输条件在不可恢复概率最小的条件约束下,动态地分配到多个可用接入链路上,不仅有效利用了多接入传输分集(MRTD)带来的数据可靠性,还保证了系统的有效吞吐量.性能分析及仿真表明,在信道状况较差的条件下,本方法在传输可靠性及有效性方面有较好的性能.
침대이구무선망락,제출일충기우전향규착(FEC)편마적다접입전수분집방법,이획취다접입분집증익.해방법장전향규착편마여병행다접입전수진행연합설계,편마후적분조포근거전수조건재불가회복개솔최소적조건약속하,동태지분배도다개가용접입련로상,불부유효이용료다접입전수분집(MRTD)대래적수거가고성,환보증료계통적유효탄토량.성능분석급방진표명,재신도상황교차적조건하,본방법재전수가고성급유효성방면유교호적성능.
For heterogeneous networks, a method of multi-radio transmission diversity is proposed in order to exploit the multi-radio access diversity gain. The packet level forward error correction (FEC) is integrated with multi-radio transmission at sender. In order to exploit the considerable multi-radio transmission diversity (MRTD) gain and provide the efficiency of system throughput, the coded packet is adaptively allocated to each available radio access according to minimizing the probability of irrecoverable loss at receiver. The analysis and simulation on its performance are proven that the proposed scheme has optimal transmission reliability and efficiency especially in the terrible channel condition.