Title :
Error Control using Nonsystematic Turbo Codes for Wireless ATM Networks
Author :
Nagarajan, G. ; Palanivelu, T.G. ; Sathia Chandrane, S.
Author_Institution :
Dept. of Electron. & Commun. Eng., Pondicheny Eng. Coll., Pondicherry
Abstract :
WATM Networks support several types of traffic stream including data, voice and video with different QoS requirements. Due to the effects of fading, multipath propagation and interference, the wireless link is characterized by a higher and more variable error rate. This has necessitated error control coding for WATM networks in order to insulate the ATM network layer from wireless channel impairments. In this paper, the nonsystematic turbo codes is introduced to WATM networks as the convergence behaviour of nonsystematic feedback convolutional encoders showed that these encoders can be used as constituent encoders in a parallel concatenated (turbo) coding scheme. We have simulated the BER performance for WATM networks
Keywords :
asynchronous transfer mode; concatenated codes; encoding; error correction codes; error statistics; quality of service; telecommunication traffic; turbo codes; wireless channels; BER; QoS; bit error rate; error control coding; feedback convolutional encoder; nonsystematic turbo code; parallel concatenated coding scheme; quality of service; traffic stream; wireless ATM network; wireless channel; Cable insulation; Communication system traffic control; Convergence; Error analysis; Error correction; Fading; Feedback; Interference; Streaming media; Turbo codes;
Conference_Titel :
Signal Processing, Communications and Networking, 2007. ICSCN '07. International Conference on
Conference_Location :
Chennai
Print_ISBN :
1-4244-0997-7
Electronic_ISBN :
1-4244-0997-7
DOI :
10.1109/ICSCN.2007.350664
