Experiments on fast sector selection with entire-bandwidth assignment in forward link for OFCDM broadband packet wireless access

• Published in: 2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No.04TH8754) Vol. 3; pp. 1689 - 1694 Vol.3
• Main Authors: Morimoto, A., Abeta, S., Sawahashi, M.
• Format: Conference Proceeding
• Language: English
• Published: Piscataway NJ IEEE 2004
• Subjects: Applied sciences; Automatic repeat request; Channel estimation; Code division multiplexing; Coding, codes; Decoding; Diffraction, scattering, reflection; Error analysis; Exact sciences and technology; Fading; Frequency selective surfaces; Information, signal and communications theory; Laboratories; Multiplexing; OFDM; Organization, operation and development plans; Radiocommunications; Radiowave propagation; Signal and communications theory; Telecommunications; Telecommunications and information theory; Urban areas; Frequency selective surfaces; Parameter estimation; Code division multiplexing; Redundancy; Wireless telecommunication; Frequency allocation; Frequency conversion; Urban area; Bandwidth allocation; Turbo code; Decoding; Packet error rate; Hybrid mode; Field experiment; Selective fading; Frequency selection; Wide band; Orthogonal code; Channel estimation; Frequency divider; Soft decision; Resource management; Automatic repeat request; High rate transmission
• ISBN: 9780780385238; 0780385233
• DOI: 10.1109/PIMRC.2004.1368288

This work presents experimental results on fast sector selection (FSS) with entire-bandwidth assignment in the forward link for orthogonal frequency and code division multiplexing (OFCDM) broadband packet access. We first elucidate that the additional improvement derived from FSS with independent frequency-block assignment by taking advantage of frequency-selective fading compared to FSS with entire-bandwidth assignment is small from the viewpoint of the received signal level when the number of frequency-block is not large. Then, we investigate the effect of FSS with entire-bandwidth assignment in laboratory and field experiments considering the application of key techniques for high-speed packet access such as hybrid ARQ with packet combining, soft-decision turbo decoding, and pilot channel-assisted channel estimation. Field experiments, which are conducted in an urban area near Tokyo, show that by applying FSS, the required signal power at the average residual packet error rate (PER) of 10/sup -3/ can be reduced by approximately 2.0 and 1.0 dB compared to the case without FSS when the maximum number of retransmissions in Incremental redundancy is 0 and 1, respectively.