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008 030926s2002 th uzm rtt 00| a1eng d
035 _a.b11900155
099 9 _aAIT RSPR no.TC-02-16
100 0 _aNguyen Xuan Hoang
245 1 0 _aJoint trellis coded quantization and trellis coded modulation for wireless channels
260 _aBangkok :
_bAsian Institute of Technology,
_c2002
300 _a55 leaves
490 1 _aResearch studies project report ;
_vno. TC-02-16
500 _aA research study submitted in partial fulfillment of requirement for the degree of Master of Engineering, School of Advanced Technologies
502 _aSpecial Studies Project Report (M.Eng.) - Asian Institute of Technology, 2002
520 _aRecently, Trellis Coded Quantization (TCQ) has been continuously developed and applied in data compression due to its low complexity and good performance. Trellis Coded Modulation (TCM) has also proven its important role in both bandwidth constraint and power constraint channels such as wireless channels. In this research study, the perfo1mance of joint TCQ/TCM with different bit allocations and complexities between source and channel coding is investigated. The complexities are the truncation delay lengths which are used in TCQ encoding and TCM decoding. The performance of joint TCQ/TCM over frequency selective fading channels is also evaluated and compared with performance of combination of TCQ and uncoded QPSK. The simulation results show that for A WGN channels, at low (less than 1 dB) and high values (greater than 4 dB) of channel SNR we should reserve more complexity and system resource (number of bits) for source coding. However, at medium range of channel SNR, those should be reserved for channel coding. For frequency selective fading channel (both independent fading and correlated fading), the joint TCQ/TCM always outperforms the combination of TCQ and uncoded QPSK for medium to high channel SNR. At low channel SNR, the performance of combination of TCQ and uncoded QPSK is better. The crossovers at which we should switch from combination of TCQ and uncoded QPSK to joint TCQ/TCM are 2 dB and 5 dB for independent and correlated fading channels respectively.
650 0 _aWireless communication systems
650 0 _aData compression (Telecommunication)
650 0 _aCoding theory
700 1 _aFernando, W.A.C.,
_eChairperson
700 1 _aErke, Tapio J.,
_eExamination Committee
700 1 _aAhmed, Kazi Mohiuddin,
_eExamination Committee
710 2 _aMinistry of Education and Training of Vietnam,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tResearch studies project report ;
_vno. TC-02-16
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B08018
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