Clear Channel Assessment in Ultra-Wideband Sensor Networks

Bin ZHEN; Huan-Bang LI; Ryuji KOHNO

doi:10.1093/ietcom/e91-b.4.998

Clear Channel Assessment in Ultra-Wideband Sensor Networks

Bin ZHEN, Huan-Bang LI, Ryuji KOHNO

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Impulse ultra-wideband (UWB) is an attractive technology for large ad hoc sensor networks due to its precise ranging capacity, multi-path fading robustness and low radiation power. The transient and carrier-less nature of low radiation pulse and harsh multipath channel condition makes it cumbersome to implement carrier sensing. We proposed clear channel assessment (CCA) based on preamble-assisted modulation (PAM) for UWB sensor networks. Preamble symbols are periodically inserted into the frame payload in the time domain to serve as regular feature for reliable CCA. We simulated the CCA performance in the multipath UWB channel model developed by IEEE 802.15.4a. PAM and CCA configurations were optimized for the distributed carrier sense multiple access protocol. PAM was accepted by 802.15.4a group as an optional feature. Furthermore, the multiplexed preamble symbols can be exploited for channel estimation to improve communication and ranging.

Publication: IEICE TRANSACTIONS on Communications Vol.E91-B No.4 pp.998-1005

Publication Date: 2008/04/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1093/ietcom/e91-b.4.998

Type of Manuscript: PAPER

Category: Network

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Bin ZHEN, Huan-Bang LI, Ryuji KOHNO, "Clear Channel Assessment in Ultra-Wideband Sensor Networks" in IEICE TRANSACTIONS on Communications, vol. E91-B, no. 4, pp. 998-1005, April 2008, doi: 10.1093/ietcom/e91-b.4.998.
Abstract: Impulse ultra-wideband (UWB) is an attractive technology for large ad hoc sensor networks due to its precise ranging capacity, multi-path fading robustness and low radiation power. The transient and carrier-less nature of low radiation pulse and harsh multipath channel condition makes it cumbersome to implement carrier sensing. We proposed clear channel assessment (CCA) based on preamble-assisted modulation (PAM) for UWB sensor networks. Preamble symbols are periodically inserted into the frame payload in the time domain to serve as regular feature for reliable CCA. We simulated the CCA performance in the multipath UWB channel model developed by IEEE 802.15.4a. PAM and CCA configurations were optimized for the distributed carrier sense multiple access protocol. PAM was accepted by 802.15.4a group as an optional feature. Furthermore, the multiplexed preamble symbols can be exploited for channel estimation to improve communication and ranging.
URL: https://globals.ieice.org/en_transactions/communications/10.1093/ietcom/e91-b.4.998/_p

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@ARTICLE{e91-b_4_998,
author={Bin ZHEN, Huan-Bang LI, Ryuji KOHNO, },
journal={IEICE TRANSACTIONS on Communications},
title={Clear Channel Assessment in Ultra-Wideband Sensor Networks},
year={2008},
volume={E91-B},
number={4},
pages={998-1005},
abstract={Impulse ultra-wideband (UWB) is an attractive technology for large ad hoc sensor networks due to its precise ranging capacity, multi-path fading robustness and low radiation power. The transient and carrier-less nature of low radiation pulse and harsh multipath channel condition makes it cumbersome to implement carrier sensing. We proposed clear channel assessment (CCA) based on preamble-assisted modulation (PAM) for UWB sensor networks. Preamble symbols are periodically inserted into the frame payload in the time domain to serve as regular feature for reliable CCA. We simulated the CCA performance in the multipath UWB channel model developed by IEEE 802.15.4a. PAM and CCA configurations were optimized for the distributed carrier sense multiple access protocol. PAM was accepted by 802.15.4a group as an optional feature. Furthermore, the multiplexed preamble symbols can be exploited for channel estimation to improve communication and ranging.},
keywords={},
doi={10.1093/ietcom/e91-b.4.998},
ISSN={1745-1345},
month={April},}

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TY - JOUR
TI - Clear Channel Assessment in Ultra-Wideband Sensor Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 998
EP - 1005
AU - Bin ZHEN
AU - Huan-Bang LI
AU - Ryuji KOHNO
PY - 2008
DO - 10.1093/ietcom/e91-b.4.998
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E91-B
IS - 4
JA - IEICE TRANSACTIONS on Communications
Y1 - April 2008
AB - Impulse ultra-wideband (UWB) is an attractive technology for large ad hoc sensor networks due to its precise ranging capacity, multi-path fading robustness and low radiation power. The transient and carrier-less nature of low radiation pulse and harsh multipath channel condition makes it cumbersome to implement carrier sensing. We proposed clear channel assessment (CCA) based on preamble-assisted modulation (PAM) for UWB sensor networks. Preamble symbols are periodically inserted into the frame payload in the time domain to serve as regular feature for reliable CCA. We simulated the CCA performance in the multipath UWB channel model developed by IEEE 802.15.4a. PAM and CCA configurations were optimized for the distributed carrier sense multiple access protocol. PAM was accepted by 802.15.4a group as an optional feature. Furthermore, the multiplexed preamble symbols can be exploited for channel estimation to improve communication and ranging.
ER -