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VLSISP
2002

Efficient VLSI Architectures for Multiuser Channel Estimation in Wireless Base-Station Receivers

11 years 1 months ago
Efficient VLSI Architectures for Multiuser Channel Estimation in Wireless Base-Station Receivers
Abstract. This paper presents a reduced-complexity, fixed-point algorithm and efficient real-time VLSI architectures for multiuser channel estimation, one of the core baseband processing operations in wireless base-station receivers for CDMA. Future wireless base-station receivers will need to use sophisticated algorithms to support extremely high data rates and multimedia. Current DSP implementations of these algorithms are unable to meet real-time requirements. However, there exists massive parallelism and bit level arithmetic present in these algorithms than can be revealed and efficiently implemented in a VLSI architecture. We re-design an existing channel estimation algorithm from an implementation perspective for a reduced complexity, fixed-point hardware implementation. Fixed point simulations are presented to evaluate the precision requirements of the algorithm. A dependence graph of the algorithm is presented and area-time trade-offs are developed. An area-constrained architec...
Sridhar Rajagopal, Srikrishna Bhashyam, Joseph R.
Added 23 Dec 2010
Updated 23 Dec 2010
Type Journal
Year 2002
Where VLSISP
Authors Sridhar Rajagopal, Srikrishna Bhashyam, Joseph R. Cavallaro, Behnaam Aazhang
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