Title :
Complexity evaluation for the implementation of a pre-FFT equalizer in an OFDM receiver
Author :
Armour, S. ; Nix, A. ; Bull, D.
Author_Institution :
Centre for Commun. Res., Bristol Univ., UK
Abstract :
A pre-FFT equalizer (PFE) has been shown to offer a significant throughput efficiency improvement when applied to an OFDM receiver. The required computational complexity to implement such an equalizer is evaluated assuming the LMS adaptation algorithm. The paper concludes by discussing the potential efficiency and complexity trade-offs that can be achieved when applying this technology to standards such as Hiperlan/2, IEEE P802.11a and DVB-T.
Keywords :
Adaptive equalizers; Computational complexity; Digital video broadcasting; Fast Fourier transforms; IEEE standards; Least mean squares methods; OFDM modulation; Radio receivers; Telecommunication standards; Television standards; Wireless LAN; DVB-T; Hiperlan/2; IEEE P802.11a; LMS adaptation algorithm; LMS algorithm; LMS analysis; OFDM receiver; adaptive equalizer; complexity evaluation; computational complexity; pre-FFT equalizer; radio communications standards; standards; throughput efficiency; Clocks; Computational complexity; Costs; Decision feedback equalizers; Digital video broadcasting; Filters; Least squares approximation; OFDM; Performance analysis; Throughput;
Conference_Titel :
Consumer Electronics, 2000. ICCE. 2000 Digest of Technical Papers. International Conference on
Conference_Location :
Los Angles, CA, USA
Print_ISBN :
0-7803-6301-9
DOI :
10.1109/ICCE.2000.854476
