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DS-CDMA with M -ary orthogonal modulation for wireless sensor networks simultaneously monitoring multiple events

DS-CDMA with M -ary orthogonal modulation for wireless sensor networks simultaneously monitoring multiple events
DS-CDMA with M -ary orthogonal modulation for wireless sensor networks simultaneously monitoring multiple events
In this paper, we propose a novel WSN framework for one fusion center to monitor simultaneously multiple source events (SEs), each of which has multiple states. In the proposed WSN, every SE is observed by a range of local sensors, which convey their observations to the fusion center in the principles of direct-sequence code-division multiple-access (DS-CDMA) associated with M -ary orthogonal modulation (MOM). Therefore, the proposed WSN is referred to as the MOM DS-CDMA WSN. In the MOM DS-CDMA WSN, the local sensors monitoring the same SE transmit their signals to the fusion center in the principles of time-division multiple-access (TDMA), while the local sensors serving different SEs communicate with the fusion center in the principles of DS-CDMA. By making use of the advantages of MOM, the fusion center detects the SEs’ states either coherently based on the maximal ratio combing (MRC) fusion rule, or non-coherently based on the equal gain combining (EGC) fusion rule. The detection performance of the fusion center is investigated by simulations. Specifically, the impacts of the number of SEs, the number of local sensors per SE, the observation reliability of local sensors, the reliability of the channels from local sensors to fusion center, etc., on the fusion detection performance are addressed.
Sim, Ee How
49e6e3fd-7c00-486f-9ea6-6680b921b72a
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Sim, Ee How
49e6e3fd-7c00-486f-9ea6-6680b921b72a
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7

Sim, Ee How and Yang, Lie-Liang (2012) DS-CDMA with M -ary orthogonal modulation for wireless sensor networks simultaneously monitoring multiple events. IEEE 75th Vehicular Technology Conference (VTC2012), Japan. 06 - 09 May 2012. 5 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

In this paper, we propose a novel WSN framework for one fusion center to monitor simultaneously multiple source events (SEs), each of which has multiple states. In the proposed WSN, every SE is observed by a range of local sensors, which convey their observations to the fusion center in the principles of direct-sequence code-division multiple-access (DS-CDMA) associated with M -ary orthogonal modulation (MOM). Therefore, the proposed WSN is referred to as the MOM DS-CDMA WSN. In the MOM DS-CDMA WSN, the local sensors monitoring the same SE transmit their signals to the fusion center in the principles of time-division multiple-access (TDMA), while the local sensors serving different SEs communicate with the fusion center in the principles of DS-CDMA. By making use of the advantages of MOM, the fusion center detects the SEs’ states either coherently based on the maximal ratio combing (MRC) fusion rule, or non-coherently based on the equal gain combining (EGC) fusion rule. The detection performance of the fusion center is investigated by simulations. Specifically, the impacts of the number of SEs, the number of local sensors per SE, the observation reliability of local sensors, the reliability of the channels from local sensors to fusion center, etc., on the fusion detection performance are addressed.

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More information

e-pub ahead of print date: May 2012
Published date: May 2012
Venue - Dates: IEEE 75th Vehicular Technology Conference (VTC2012), Japan, 2012-05-06 - 2012-05-09
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 339144
URI: http://eprints.soton.ac.uk/id/eprint/339144
PURE UUID: 08716044-9ee3-4784-8715-db303165af24
ORCID for Lie-Liang Yang: ORCID iD orcid.org/0000-0002-2032-9327

Catalogue record

Date deposited: 24 May 2012 12:55
Last modified: 20 Jul 2019 01:12

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Contributors

Author: Ee How Sim
Author: Lie-Liang Yang ORCID iD

University divisions

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