Detection algorithm for DAA using Decision Directed method in MB-OFDM
TL;DR: The new detection algorithm based on decision-feedback, which shows faster convergence time and less complexity than previous works is proposed.
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Abstract: Since the MB-OFDM(Multi-Band Orthogonal Frequency Division Multiplexing) is an ultra wideband communication system operated on ISM(Industrial, Scientific and Medical) band, DAA(Detect-And-Avoid) is required for co-existence with the other communication service. In this paper we propose the new detection algorithm based on decision-feedback, which shows faster convergence time and less complexity than previous works. The proposed algorithm detects interference above -20dB in AWGN(Additive White Gaussian Noise) and LOS(Line-Of-Sight) channel, and close to AWGN in non-LOS channel under appropriate channel clipping.
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References
Detect and Avoid: An Ultra-Wideband/WiMAX Coexistence Mechanism
Shridhar Mubaraq Mishra,Robert W. Brodersen,Ravishankar Mahadevappa +2 more
- 01 Jan 2007
TL;DR: In this paper, the authors describe the obstacles faced in achieving robust detection and avoidance with an on-chip implementation of basic DAA functionality, and present measurement results for operation of a single UWB device with a WiMAX system.
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Detect and avoid: an ultra-wideband/WiMAX coexistence mechanism [Topics in Radio Communications]
TL;DR: The obstacles faced in achieving robust detection and avoidance with an on-chip implementation of basic DAA functionality are described and measurement results for operation of a single UWB device with a WiMAX system are presented.