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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Nuan Song Wolf, M. Haardt, M. |
| Copyright Year | 2010 |
| Description | Author affiliation: Communications Research Laboratory, Ilmenau University of Technology P.O. Box 100565, D-98693 Ilmenau, Germany (Nuan Song; Wolf, M.; Haardt, M.) |
| Abstract | A novel Narrowband Interference (NBI) suppression scheme using a Soft Limiter (SLM) is proposed for a digital noncoherent receiver in Time-Hopping Pulse Position Modulation Ultra Wideband (TH-PPM-UWB) communications. The NBI suppression is carried out in the analog domain (before the digital processing) via a feedforward structure. The suitability of this NBI suppression concept is confirmed by the performance evaluation in the presence of strong NBI. We consider both an unmodulated single-tone interference and Orthogonal Frequency Division Multiplex (OFDM) interference from an IEEE 802.11a Wireless Local Area Network (WLAN). As a comparison, we also investigate the use of a Hard Limiter (HLM). To ensure an effective NBI mitigation, we discuss the threshold selection of the SLM/HLM in the case of full-resolution as well as b-bit receivers (1 ≤ b ≤ 4). When b ≠ 1, a joint adjustment of both the threshold and the Automatic Gain Control (AGC) is required. In the presence of the strong OFDM interference, a block-based threshold adaptive NBI suppression technique is proposed. Moreover, we also evaluate the frequency-dependent performance of the proposed receiver. |
| Starting Page | 501 |
| Ending Page | 505 |
| File Size | 312704 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781424463152 |
| ISSN | 21540225 |
| e-ISBN | 9781424463176 |
| DOI | 10.1109/ISWCS.2010.5624384 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-09-19 |
| Publisher Place | United Kingdom |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Wireless LAN AWGN OFDM Bit error rate Receivers Interference Signal to noise ratio |
| Content Type | Text |
| Resource Type | Article |
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