The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We presents a hybrid decoder, which adopts a soft-input soft-output or a hard-input soft-output scheme to decode a row/column vector in each iteration for iterative decoding a turbo product code, based on the syndrome of the row/column vector. Simulation results demonstrate that the decoding complexity can be effectively reduced and the bit-error rate can be improved slightly, compared with a conventional...
To improve the performance of hybrid concatenated convolutional codes (HCCC); a modified Log-MAP algorithm and an enhanced HCCC are introduced and demonstrated to be efficient and practical by simulation results. The new coding scheme achieves about 1.0 dB additional coding gain, compared to the general turbo coding scheme at a BER = 10-6, with a frame length of 8192-bit. The system complexity and...
Recently, there has been intensive focus on turbo codes which have low decoding latency. To reduce the iterative delay resulted from (de)interleaver; a new parallel algorithm for turbo decoder is proposed. Different than the previous approaches which use multiple units to process sub-block MAP decoding in parallel, the new parallel turbo decoder immediately passes the extrinsic information of one...
To reduce the iterative decoding time in turbo coding, a new parallel decoding algorithm for turbo decoders is proposed. Different than the previous approaches of using multiple SISO decoders to process sub-block MAP decoding in parallel, the new parallel turbo decoder immediately passes the extrinsic information of each message bit which is generated by one SISO decoder to the other SISO decoders...
As the number of iterations increases, the soft inputs and outputs of a turbo decoder gradually become more reliable. To take the effect into account, this paper presents an efficient adaptive scaling scheme for turbo decoding that extends the sign difference ratio (SDR) technique. Unlike the conventional approach using a fixed set of scaling factors, it adaptively determines the scaling factor for...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.