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Performance of Convolutional Turbo Coded High-speed Portable Internet (WiBro) System

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5 Author(s)
Yuexing Peng ; Beijing Univ. of Posts & Telecommun. ; Hongzhong Yan ; Young Il Kim ; Yong Su Lee
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WiBro (wireless broadband), the standard of high-speed portable internet (HPI) based on OFDMA/TDD and IP network in Korea, is the subset of consolidated version of IEEE 802.16e wireless MAN standard. In this paper, the architecture and key physical layer technologies of WiBro are briefly introduced, whereas the convolutional turbo code (CTC) with high-order modulation is presented in detail. The performance of convolutional Turbo coded WiBro system with QPSK, 16QAM and 64QAM over ITU-R channel models is simulated, where pilot tones aided channel estimation and 1-tap equalization are applied. Simulation results show that the good BER performances of CTC with short code block size in WiBro systems, which facilitates the flexibility of channel resource allocation. Given the same code block size, CTC outperforms TC (turbo codes) and CC (convolutional codes).

Published in:

Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th

Date of Conference:

22-25 April 2007