一种提高数据传输可靠性的成分载波选择算法

Component carrier selection algorithm to improve the reliability of data transmission

载波聚合是LTE-Advanced的关键技术之一,它能有效地解决LTE-A系统带宽扩展问题。合理的选择成分载波将使得数据业务在传输时具有高的可靠性。本文提出了一种提高数据传输可靠性的成分载波选择算法,综合考虑成分载波信道质量和负载均衡两方面,对成分载波进行选择。通过仿真表明,该算法可以有效地选择成分载波进行聚合,降低数据传输的误比特率和误块率,减少平均传输次数,从而提高数据传输的可靠性,降低系统开销。

Carrier aggregation technology is one of the key technologies in LTE-A system, which can effectivelysolve the bandwidth extension problem in LTE-A system. Carrier aggregation select proper thecomponent carrier during transmission will make the data with high reliability. This paper presents acomponent carrier selection algorithm to improve the reliability of data transmission, considering bothcomponent carrier channels quality and load balancing, then select the component carrier. The simulationresults show that this algorithm can effi ciently aggregate the component carrier and decrease bit errorrate and block error rate of data transmission, reducing the average number of transmission, therebyincreasing the reliability of data transmission, reducing system overhead.