Multiplierless correlators for HIPERLAN/2 and IEEE 802.11A wireless local area networks
A sliding correlator for timing synchronization in HIPERLAN/2 and IEEE 802.11a wireless local area networks by correlating the received signal with a known waveform is disclosed. The disclosed sliding correlator avoids the large number of complex multiplications per second, about 320 million by one estimate, by employing an implementation that avoids multiplication operations while also avoiding complexity. This invention discloses methods and apparatus to implement this correlator, using alternative correlator coefficients well suited for digital implementations, whereby the need to perform multiplication is eliminated.
Patent Number: US7395291B2
Application Number: US2004784820A
Inventor: Yip, Kun Wah | Wu, Yik Chung | Ng, Tung Sang
Priority Date: 24 Feb 2004
Priority Number: US7395291B2
Application Date: 24 Feb 2004
Publication Date: 1 Jul 2008
IPC Current: G06F001710 | G06F001715
US Class: 708319
Assignee Applicant: The University of Hong Kong
Title: Multiplierless correlators for HIPERLAN/2 and IEEE 802.11A wireless local area networks
Usefulness: Multiplierless correlators for HIPERLAN/2 and IEEE 802.11A wireless local area networks
Summary: For correlating signal conforming to IEEE 802.11a standards, received by wireless local area network and high performance local area network/2.
Novelty: Correlation method of signal received from wireless local area network, involves combining subset of scaled real signal samples and subset of scaled imaginary signal sample based on specified correlator form to generate correlator output
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