Multicast Resource Allocation in Heterogeneous Networks

• 1、School of Information and Communication,Beijing University of Posts and Telecommunications,Beijing 100876

Abstract：Compared to traditional unicast, multicast can improve transmission rate and take better advantage of band resources. In the multicast, resource allocation is of much importance because the throughput in the whole system is related to the algorithms of resource allocation.This is mainly about algorithms of resource allocation in multicast in heterogeneous networks by proposing an algorithm using dynamic programming based on quality of service in heterogeneous networks. In heterogeneous networks composed by Femtocell and Macrocell, different quality of service in different multicast services and multicast resource allocation are taken into account. To those areas interfered in the same frequency and areas not interfered in the same frequency, different resource allocation algorithms are used. Because the aim of resource allocation in those areas are not the same. To those areas interfered by other signals in the same frequency, the aim is to guarantee its basic communication quality by guarantee its basic quality of service, to other areas, the aim is to maximize the total throughput by using the dynamic programming algorithm proposed before. Thus, it can be infered that this algorithm can not only guarantee the quality of service in the whole system, but also maximize the total throughput to some extends.

Keywords： Wireless communication Heterogeneous networks Resource allocation Multicaist Dynamic programming