Generalized Radio Resource Management for Overlapping MBS Zones

Fang Luo,Yu-Feng Chou,Ray-Guang Cheng,Marek Kalika,Jana Kalikova,Radek Holy

doi:10.15598/aeee.v11i5.908

Abstract

Multicast and broadcast service (MBS) is a point-to-multipoint service where data packets are transmitted simultaneously from a single source to multiple destinations. In MBS, some base stations (BSs) may form an MBS zone and transmit identical MBS contents simultaneously using the same modulation and coding scheme. Hence, the network has to coordinate the transmission of BSs such that BSs belonging to multiple MBS zones may utilize non-conflict resources to transmit different MBS contents. This paper extends the work in [10] for accommodating MBS zones with different service presence probabilities and various bandwidth requirements. A continuous allocation algorithm and a non-continuous allocation algorithm are presented to allocate resource units for overlapping MBS zones. Simulations were conducted to verify the effectiveness of the proposed algorithms.

Highlights

Multimedia broadcast/multicast service (MBMS), which is known as multicast and broadcast service (MBS) in IEEE 802.16m, is one of the important services defined by 3GPP Long Term Evolution (LTE) for the 4th generation cellular systems
Two service architectures are supported by 3GPP for delivering MBMS services: single cell-point to multi-points (SC-PTM) and multicast broadcast single frequency network (MBSFN)
The network should allocate separate radio resource units for overlapping MBS zones such that base stations (BSs) belonging to different MBS zones may transmit individual MBS content without confliction [4]

Summary

Introduction

Multimedia broadcast/multicast service (MBMS), which is known as multicast and broadcast service (MBS) in IEEE 802.16m, is one of the important services defined by 3GPP Long Term Evolution (LTE) for the 4th generation cellular systems. The network should allocate separate radio resource units for overlapping MBS zones such that BSs belonging to different MBS zones may transmit individual MBS content without confliction [4]. The radio resource allocation for overlapping MBS zones is similar to the channel assignment problem discussed in traditional cellular networks. The radio resource allocation for overlapping MBS zones is similar to the static channel assignment problem. Both of them can be solved based on graph theory [7]. The radio resource re-allocation for overlapping MBS zones is different to the dynamic channel assignment problem. An MBS zone with a higher service presence probability contains more cells

System Model

Simulation Results

Conclusion