宽带电力线载波通信物理层资源分配新算法

宽带电力线载波基于正交频分复用技术可实现电力串行通信数据的并行传输,增强了电力通信系统的实时性与高效性.针对宽带电力线载波通信资源分配问题,文中提出了一种低复杂度的物理层资源分配算法,首先基于等功率分配方式确定各用户为满足其最低速率需求所需的子载波集合,将多用户资源分配问题降维成单用户资源分配问题,之后对各用户所分配的子载波集进行功率优化,实现系统吞吐量的进一步提升.实验表明所提算法在满足更多用户并发业务的最低传输速率需求的同时,有效提升了网络吞吐量.

A new algorithm of physical layer resource allocation for broadband power line carrier communication

Broadband power line carrier communication adopts OFDM technology to effectively improve system communication performance, and provides abundant communication resource guarantee for realizing broadband power line communication power multi-service applications. Aiming at the problem of broadband power line carrier communication resource allocation, this paper proposes a low-complexity physical layer resource allocation algorithm. First, based on the equal power allocation method, the set of subcarriers required by each user to meet their minimum rate requirements is determined, and the multi-user resource allocation problem is reduced to a single-user resource allocation problem, and then the power of the sub-carrier set allocated by each user is optimized to further improve the system throughput. Experiments show that the algorithm in this paper effectively improves the network throughput while meeting the minimum transmission rate requirements of more users" concurrent services.