A MAC protocol with power control for DS-UWB communication system

Author

Xiaofeng Tao ; Yumin Wang ; Xiongfei Li ; Jianchao Ji

Author_Institution

China Acad. of Space Technol. (Xi´an), Xi´an, China

fYear

2014

fDate

19-23 Oct. 2014

Firstpage

1654

Lastpage

1658

Abstract

This paper studies a concurrent transmissions MAC (CT-MAC) protocol with power control and improves the best value of collision domain to make it more suitable for direct sequence ultra-wideband (DS-UWB) system. CT-MAC protocol realizes multi-channel transmission by identifying users with different spreading codes. In CT-MAC protocol, nodes of network calculate collision domain each time when they receive packets. The range of collision domain will decrease when bandwidth increases, therefore, when CT-MAC protocol is used in UWB communication, the number of concurrent nodes becomes large and the network will have a better performance. Energy problem is the common problem of physical layer and MAC layer. Therefore, this paper gives a power saving scheme of the MAC layer to determine the sending power of DATA and ACK packets to reduce the power consumption of network by the information exchange in RTS and CTS control packets between two communicating nodes.

Keywords

access protocols; channel coding; data communication; electronic data interchange; network coding; packet radio networks; spread spectrum communication; telecommunication congestion control; telecommunication power management; ultra wideband communication; wireless channels; ACK packet; CT-MAC protocol; CTS control packet; DATA packet; DS-UWB communication network; MAC layer power saving scheme; RTS control packet; collision domain; concurrent transmission MAC protocol; direct sequence ultra wideband communication system; energy problem; information exchange; multichannel transmission; physical layer problem; power consumption reduction; power control; spreading code; user identification; Ad hoc networks; Bandwidth; Media Access Protocol; Noise; Power control; Power demand; CT-MAC protocol; DS-UWB; collision domain; power control;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing (ICSP), 2014 12th International Conference on

Conference_Location

Hangzhou

ISSN

2164-5221

Print_ISBN

978-1-4799-2188-1

Type

conf

DOI

10.1109/ICOSP.2014.7015276

Filename

7015276