Adaptive Transmission Scheme for Mixed Multicast and Unicast Traffic in Cellular Systems

Author

Baek, Seon Yeob ; Hong, Young-Jun ; Sung, Dan Keun

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon

Volume

58

Issue

6

fYear

2009

fDate

7/1/2009 12:00:00 AM

Firstpage

2899

Lastpage

2908

Abstract

Wireless communication systems have been developed to support users´ various requirements. Multicast and unicast transmission schemes are proposed for various types of services. The multicast transmission is known as an efficient method for group-data transmission. The data rate for multicast transmission depends on the instantaneous worst channel user. On the other hand, unicast transmission exploits wireless channel variation and achieves a multiuser diversity gain. In this paper, we evaluate and compare the system performance of multicast and unicast transmission schemes in terms of system capacity, worst average channel user´s capacity, and outage probability for varying cell environments. We also propose a novel hybrid scheduling scheme for mixed multicast and unicast traffic services and compare the proposed scheme with the conventional scheme.

Keywords

cellular radio; channel capacity; diversity reception; multicast communication; multiuser channels; probability; scheduling; telecommunication traffic; wireless channels; adaptive transmission scheme; cell environment; cellular systems; channel user capacity; group-data transmission; hybrid scheduling scheme; multicast traffic services; multiuser diversity gain; outage probability; unicast traffic services; wireless channel variation; wireless communication system; Multicast analysis; multicast service; system capacity; unicast analysis; unicast service;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2008.2010515

Filename

4696030