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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Qin Zhou Zhuo Zou Jonsson, F. Li-Rong Zheng |
| Copyright Year | 2011 |
| Description | Author affiliation: iPack Vinn Excellence Center, School of Information and Communication Technology, KTH-Royal Institute of Technology, Sweden (Qin Zhou; Zhuo Zou; Jonsson, F.; Li-Rong Zheng) |
| Abstract | Impulse Radio Ultra-Wideband (IR-UWB) exhibits strong advantages in low power and low cost applications such as RFID and Wireless Sensor Networks. This paper presents an on-off keying (OOK) based energy detection IR-UWB receiver with focus on the back-end design. In order to optimize the receiver performance according to different multi-path environment, variable integration interval and adaptive threshold optimization are considered in the proposed back-end which is composed by a programmable timing circuit and a reconfigurable baseband processor. The timing circuit is able to generate multi-phased integration windows with wide-range variable integration interval and is implemented in 90 nm CMOS process. Novel schemes on synchronization and optimum threshold estimation are suggested for baseband processing. The proposed synchronization scheme is based on maximum energy variance (between symbol ‘0’ and ‘1’) detection, covering both the pulse level and symbol level synchronization. And the scheme for optimum threshold estimation is based on look up table, enabling low complexity implementation. System simulation with IEEE 802.15.4a channel models shows an appreciable improvement on the bit error rate (BER) performance compared with the conventional scheme. |
| Starting Page | 130 |
| Ending Page | 134 |
| File Size | 739208 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781457717635 |
| ISSN | 21626596 |
| e-ISBN | 9781457717642 |
| e-ISBN | 9781457717628 |
| DOI | 10.1109/ICUWB.2011.6058811 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-09-14 |
| Publisher Place | Italy |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Ultra-wideband (UWB) Baseband Bit error rate Estimation Receivers on-off keying (OOK) energy detection synchronization threshold Synchronization Clocks |
| Content Type | Text |
| Resource Type | Article |
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