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.
In this paper, we develop efficient decoders for non-binary low-density parity-check codes using the alternating direction method of multipliers (ADMM). We apply ADMM to two decoding problems. The first problem is linear programming (LP) decoding. In order to develop an efficient algorithm, we focus on non-binary codes in fields of characteristic two. This allows us to transform each constraint in...
Alternating direction method of multipliers (ADMM) decoding is a new decoding framework for low-density parity-check (LDPC) codes. It can be used to implement linear programming (LP) decoding or penalized LP decoding. Similar to belief propagation (BP) decoding, ADMM decoding consists of local “check” and “variable updates”. However, ADMM decoding performs better than BP at high signal-to-noise ratios...
In this paper, we present a new class of decoders for low density parity check (LDPC) codes. We are motivated by the observation that the linear programming (LP) decoder has worse error performance than belief propagation (BP) decoders at low SNRs. We base our new decoders on the alternating direction method of multipliers (ADMM) decomposition technique for LP decoding. The ADMM not only efficiently...
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.