Scheduled System Maintenance:
Some services will be unavailable Sunday, March 29th through Monday, March 30th. We apologize for the inconvenience.
By Topic

A compressed sensing receiver for bursty communication with UWB Impulse Radio

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
2 Author(s)
Oka, A. ; Dept. of Electr. & Comput. Eng., Univ. of British Columbia, Vancouver, BC, Canada ; Lampe, L.

We propose a novel receiver for ultra-wideband impulse-radio communication in bursty applications like wireless sensor networks. It is based on the principle of compressed sensing, and exploits the sparsity of the transmitted signal to achieve reliable demodulation. Instead of a full-fledged high-rate A/D, a modest number of projections of the received signal are acquired using analog correlators, and a joint decoding of the time of arrival and the data bits is performed from these under-sampled measurements via an efficient quadratic program. The receiver does not use wideband analog delay lines, and is robust to large timing uncertainty, hence the transmitter need not waste power on explicit training headers for timing synchronization. Moreover, the receiver can operate in a regime of heavy inter-symbol interference (ISI), and allows a very high baud rate (close to the Nyquist rate). Its performance is shown to remain close to the maximum likelihood receiver under every scenario of under-sampling, timing uncertainty, ISI, and delay spread.

Published in:

Ultra-Wideband, 2009. ICUWB 2009. IEEE International Conference on

Date of Conference:

9-11 Sept. 2009