Simultaneous RTS and Sequential CTS Considering Multiple Cooperative Relays

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We propose a distributed scheduling algorithm for wireless ad hoc systems that use cooperative transmission in which multiple cooperative relays can transmit at the same time by using an amplify-and-forward (AF) scheme or a decode-and-forward (DF) scheme. Our proposed scheme is a carrier-sense-multiple-access-like (CSMA-like) scheduling algorithm, which uses simultaneous request-to-send (RTS) and sequential clear-to-send (CTS) (SRSC) transmission in which multiple transmitters broadcast RTS at the same time, and the power of CTS transmission changes dynamically according to the relaying scheme used and the number of cooperative relays. Therefore, each cooperative transmission set can recognize efficiently whether its transmission will interfere with neighboring ongoing transmissions. Through performance evaluation by simulation, we show that the proposed scheme can enhance the performance of wireless ad hoc systems that use cooperative transmission.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2013-06
Language
English
Article Type
Article
Citation

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, v.62, no.5, pp.2369 - 2374

ISSN
0018-9545
DOI
10.1109/TVT.2012.2236851
URI
http://hdl.handle.net/10203/174348
Appears in Collection
EE-Journal Papers(저널논문)
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