Releasing congestion in next generation cellular networks by using static channel relaying strategy analytical approach

摘要

There have been a number of solutions proposed to deal with congestion resulting from limited number of channels available in cellular networks. Channel assignment and channel relaying are two main strategies used to best utilise the available network capacity. Static channel relaying strategy (SCRS) is a scheme used to reduce congestion and call blocking probability in hot (overloaded) cells. It not only helps in relieving congestion to attain required GoS levels, but also in utilising free channels to achieve load balancing in next generation cellular networks (NGCN). SCRS can also be used, as proposed in this paper, to localise and minimise hot regions in NGCN to prevent propagation of congestion throughout the network. The analytical results on the relaying scheme proposed in this paper show that it is capable of controlling call blocking probability even in the cases of heavy traffic loads in the hot area.