Comparison of multicast/broadcast services in Long Term Evolution Advanced and IEEE 802.16m networks
| Autor: | Jorge Calabuig, David Martin-Sacristan, Joan Olmos, Jose F. Monserrat |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Multicast
Computer Networks and Communications business.industry Computer science IMT Advanced ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Data_CODINGANDINFORMATIONTHEORY Broadcasting Multiplexing WiMAX Transmission (telecommunications) Hardware_GENERAL Time-division multiplexing Electrical and Electronic Engineering Unicast business Information Systems Computer network Data transmission |
| Zdroj: | Wireless Communications and Mobile Computing. 14:717-728 |
| ISSN: | 1530-8669 |
| DOI: | 10.1002/wcm.2229 |
| Popis: | This paper performs a comparison of multicast/broadcast services MBS support in Long Term Evolution Advanced LTE-A and Worldwide Interoperability for Microwave Access WiMAX IEEE802.16m. Firstly, the main technical features of both standards concerning MBS operation are presented. It is shown that WiMAX offers higher unicast/MBS multiplexing flexibility as it supports both frequency and time multiplexing schemes, whereas LTE-A only includes time multiplexing. Besides, only WiMAX supports multi-antenna transmission. Next, the results of two simulation-based assessments are presented. In the former, it is considered a scenario with all cells transmitting the same MBS service. The effect of inter-site distance ISD on the maximum MBS data rate is evaluated. Results show that WiMAX configurations outperform LTE-A for small ISD. This is because WiMAX provides a higher number of resources dedicated to data transmission for the same bandwidth. Furthermore, some WiMAX configurations support two spatially multiplexed data streams. With higher ISDs, LTE-A outperforms single-stream WiMAX configurations. In the second assessment, a MBSFN area surrounded by interfering cells is considered to compare unicast/MBS multiplexing performance. The higher maximum MBS data rate is achieved in WiMAX with time division multiplexing, which is precisely the only alternative included in LTE-A. Copyright © 2012 John Wiley & Sons, Ltd. |
| Databáze: | OpenAIRE |
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