Rapid acquisition of ultra-wideband radio signals

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Conference Proceeding

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Impulse radio provides many promising features for wireless communications in a dense multipath environment. However, a number of these features result from the enormous effective processing gain, which can make acquisition difficult at the receiver. In this paper, a recently developed theory of minimum complexity sequential detection is applied to the hybrid acquisition problem. As in previous hybrid schemes, a number of hypotheses are checked as a group; however, a hypothesis is disregarded as soon as it looks unlikely rather than waiting for a "winner" to be chosen from the group. Another hypothesis then replaces the disregarded hypothesis. It is shown that this novel scheme can improve average acquisition times for highly spread systems.

Publication Source (Journal or Book title)

Conference Record of the Asilomar Conference on Signals, Systems and Computers

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