Distributed Coordination Schemes for Multi-Radio Co-existence in Dense Spectrum Environments: An Experimental Study on the ORBIT Testbed

This paper presents an experimental study on the spectrum coexistence problems between multi-radio platforms in dense-radio physical world environments. Computing and communication devices such as laptops and cellular phones with multiple radios including WiFi, Bluetooth, UWB, WiMax and Zigbee in a...

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Bibliographic Details
Main Authors: Xiangpeng Jing, Anandaraman, S.S., Ergin, M.A., Seskar, I., Raychaudhuri, D.
Format: Conference Proceeding
Language:English
Subjects:
Bluetooth
Interference
Orbits
Protocols
Radio transmitters
Receivers
WiMAX
Online Access:Request full text
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Summary:This paper presents an experimental study on the spectrum coexistence problems between multi-radio platforms in dense-radio physical world environments. Computing and communication devices such as laptops and cellular phones with multiple radios including WiFi, Bluetooth, UWB, WiMax and Zigbee in a small conference room face significant interference problems. A realistic small office/home office (SOHO) scenario with ~10-25 multi-radio platforms is mapped onto the ORBIT radio grid testbed, and system throughput results are obtained experimentally, demonstrating significant degradation due to inter-platform interference. The CSCC (Common Spectrum Coordination Channel) protocol proposed in earlier work is used as the basis for implementing a set of distributed spectrum coexistence algorithms intended to improve system performance. Detailed results from ORBIT testbed experiments are given for the proposed CSCC-based distributed spectrum coordination algorithms. The results show significant performance gains due to CSCC coordination, typically achieving ~2x improvement in system throughput for WiFi/Bluetooth dual radio scenarios.
DOI:10.1109/DYSPAN.2008.24