Synchronization requirements for multi-user OFDM on satellite mobile and two-path Rayleigh fading channels

@article{citeulike:813580, abstract = {The performance of multi-user orthogonal frequency division multiplexing (OFDM) with raised cosine time domain pulse shaping is studied on the satellite mobile channel (SMC) and the two-path Rayleigh fading channel. A multi-user time and carrier frequency synchronization scheme is discussed. The relationship between the synchronization requirement and the roll-off rate (\β) of the pulse shaping is explored. In Gaussian and typical Rician (K=10) channels, multi-user OFDM with \β=0.2 requires timing and carrier frequency synchronization accuracies of 4\% and 2\%, respectively, in order to avoid severe degradation due to multi-user adjacent channel interference, while on the two-path Rayleigh channel these values must be better than 2\% for error floors less than 10^-3. Timing and carrier frequency accuracies are normalized to T and 1/T respectively, where T is the symbol duration. Multi-user OFDM is less affected by the multipath time delay and slightly more severely affected by the Doppler frequency shift than traditional FDM with root Nyquist filtering (FDM/RNF) for the same value of \β}, author = {Wei, L. and Schlegel, C. }, citeulike-article-id = {813580}, journal = {Communications, IEEE Transactions on}, keywords = {channels, fading, mobile, multipath, multiuser, ofdm, rayleigh, satellite, synchronization}, number = {234}, pages = {887--895}, posted-at = {2007-11-14 09:27:52}, priority = {2}, title = {Synchronization requirements for multi-user OFDM on satellite mobile and two-path Rayleigh fading channels}, url = {http://ieeexplore.ieee.org/xpls/abs\_all.jsp?arnumber=380121}, volume = {43}, year = {1995} }

TY - JOUR ID - citeulike:813580 L3 - citeulike-article-id:813580 TI - Synchronization requirements for multi-user OFDM on satellite mobile and two-path Rayleigh fading channels JF - Communications, IEEE Transactions on VL - 43 IS - 234 SP - 887 EP - 895 N2 - The performance of multi-user orthogonal frequency division multiplexing (OFDM) with raised cosine time domain pulse shaping is studied on the satellite mobile channel (SMC) and the two-path Rayleigh fading channel. A multi-user time and carrier frequency synchronization scheme is discussed. The relationship between the synchronization requirement and the roll-off rate (β) of the pulse shaping is explored. In Gaussian and typical Rician (K=10) channels, multi-user OFDM with β=0.2 requires timing and carrier frequency synchronization accuracies of 4% and 2%, respectively, in order to avoid severe degradation due to multi-user adjacent channel interference, while on the two-path Rayleigh channel these values must be better than 2% for error floors less than 10^-3. Timing and carrier frequency accuracies are normalized to T and 1/T respectively, where T is the symbol duration. Multi-user OFDM is less affected by the multipath time delay and slightly more severely affected by the Doppler frequency shift than traditional FDM with root Nyquist filtering (FDM/RNF) for the same value of β KW - channels KW - fading KW - mobile KW - multipath KW - multiuser KW - ofdm KW - rayleigh KW - satellite KW - synchronization AU - Wei, L AU - Schlegel, C PY - 1995/// UR - http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=380121 ER -