A novel detection criterion for weak m-ary signals and its application to ultrawideband multiple access systems
- Authors
- Song, IH; Koo, J; Kwon, H; Park, SR; Lee, SR; Chung, BH
- Issue Date
- Nov-2005
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- locally optimum (LO); maximum likehood (ML); ultrawideband (UWB); weak signal detection
- Citation
- IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, v.54, no.6, pp.2024 - 2036
- Journal Title
- IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
- Volume
- 54
- Number
- 6
- Start Page
- 2024
- End Page
- 2036
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/25145
- DOI
- 10.1109/TVT.2005.858165
- ISSN
- 0018-9545
- Abstract
- In this paper, we propose a novel criterion for the detection of weak m-ary signals. In the sense of minimizing the error probability, the proposed criterion is optimal when the signal strength approaches zero. Based on the proposed criterion, a detection scheme for ultrawideband multiple access systems is proposed and analyzed in the presence of impulsive interference. Numerical results show that the proposed detector requires less complexity than, and possesses almost the same performance as, the maximum likelihood detector. In impulsive interference, the proposed detector also offers significant performance improvement over the detector optimized for a Gaussian environment.
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