Title :
Parallel concatenated convolutional coding for an LMDS system with multimedia services
Author_Institution :
Central Res. & Dev. Center, SK Telecom, South Korea
fDate :
9/1/2000 12:00:00 AM
Abstract :
The performance of LMDS (local multipoint distribution service) system with parallel concatenated convolutional coding (PCCC) is analyzed and simulated. The channel of a LMDS system is modeled as a Rician fading channel with strong Rician factor because it is generally accepted that there always exists a line-of-sight (LOS) path between base station and subscriber units. The performance is evaluated in terms of codeword error probability. From the simulation results, it is confirmed that the performance is significantly improved by employing the PCCC. The results in the paper can be applied to radio modem design of a LMDS system
Keywords :
Rician channels; concatenated codes; convolutional codes; error statistics; multimedia communication; radio links; simulation; LMDS system; LOS path; Rician factor; Rician fading channel; base station; codeword error probability; interactive multimedia services; line-of-sight path; local multipoint distribution service; multimedia services; parallel concatenated convolutional coding; performance evaluation; point-to-multipoint services; radio modem design; simulation results; subscriber units; Concatenated codes; Convolutional codes; Forward error correction; Iterative decoding; Maximum likelihood decoding; Multimedia systems; Research and development; Rician channels; Wireless communication; Wireless networks;
Journal_Title :
Broadcasting, IEEE Transactions on
