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has been cited by the following article:

• TITLE: Fast Converging Generalized Turbo Decoding Scheme with Enhanced Throughput for Mobile Radio

  AUTHORS: Ashok Kumar Shankhwar, Sachin Sharma, Rajeev Tripathi, Arun Prakash, Ashutosh Singh

  KEYWORDS: Log-MAP Decoding; Mobile Radio; Turbo Decoder; UMTS; Wireless

  JOURNAL NAME: Communications and Network, Vol.5 No.1, February 27, 2013

  ABSTRACT: The use of turbo codes enhances the data transmission efficiency and optimizes the performance of a communication system over wireless fading channels. In this paper, we present a brief overview of the various components of the turbo coding scheme, analyze the complexities of the most popular turbo decoding algorithms, and discuss the various implementation methods of the maximum a posteriori (MAP) algorithm. The paper considers the well-known log-MAP decoding algorithm by a linear approximation of the correction function used by the max* operator. We propose a generalized decoding scheme that optimizes the existing MAP algorithm for faster convergence and better throughput on the basis of varying channel conditions. The proposed scheme of decoding reduces complexity and enhances the throughput with only a negligible loss in BER performance.