MIMO-CAST: A Cross-Layer Ad Hoc Multicast Protocol using MIMO Radios

Author

Oh, Soon Y. ; Gerla, Mario ; Zhao, Pengkai ; Daneshrad, Babak ; Pei, Guangyu ; Kim, Jae H.

Author_Institution

Computer Science Department, University of California, Los Angeles, Los Angeles, CA 90095-1596 USA. soonoh@cs.ucla.edu

fYear

2007

fDate

29-31 Oct. 2007

Firstpage

1

Lastpage

6

Abstract

IEEE 802.11 MAC does not use RTS/CTS exchange in multicast/broadcast mode. This may cause throughput loss and packet collision by hidden terminals. We propose a new cross-layer ad hoc multicast protocol, named MIMO-CAST, to improve efficiency of IEEE 802.11 MAC. MIMO-CAST builds a multicast tree on-demand by using control packets exchange. To reduce duplicated transmissions, MIMO-CAST employs Multi Point Relay with which only designated nodes forward packets and all nodes in the network hear those packets. It also exploits Multiple-Input Multiple-Output (MIMO) by giving different weights to its multiple antennas so that a node can receive from one neighbor while blocking the interference from other nodes. We investigate the performance improvement of MIMO-CAST through a simulation study

Keywords

Delay; Interference; MIMO; Media Access Protocol; Multicast protocols; Radio transmitters; Receiving antennas; Relays; Throughput; USA Councils;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 2007. MILCOM 2007. IEEE

Conference_Location

Orlando, FL, USA

Print_ISBN

978-1-4244-1513-7

Electronic_ISBN

978-1-4244-1513-7

Type

conf

DOI

10.1109/MILCOM.2007.4455015

Filename

4455015