Randomly Punctured LDPC Codes
نویسندگان
چکیده
منابع مشابه
A Partial IR Hybrid ARQ Scheme Using Rate-Compatible Punctured LDPC Codes in an HSDPA System
In this paper, an efficient partial incremental redundancy (P-IR) scheme is proposed for an H-ARQ using block type low density parity check (B-LDPC) codes. The performance of the proposed P-IR scheme is evaluated in an HSDPA system using IEEE 802.16e B-LDPC codes. Simulation results show that the proposed H-ARQ using IEEE 802.16e BLDPC codes outperforms the H-ARQ using 3GPP turbo codes. key wor...
متن کاملInfluence of Laser Linewidth and Modulation Level for Coherent Optical OFDM with Punctured LDPC Codes
Recently, coherent optical OFDM (CO-OFDM) has been proposed for optical networks to combat chromatic dispersion. CO-OFDM system has been successfully processed and recovered for transmitted signals without optical chromatic dispersion compensation. However, in optical links, the available optical power is limited due to fiber nonlinearity, and power consumption. As previously reported, we focus...
متن کاملInterleavers for Punctured Turbo Codes
Puncturing is a way of increasing the code rate by deleting one or more parity bits in a code word without an increase in complexity. Puncturing is applied to the Turbo code scheme of Berrou et al. to increase the coding rate from 1/3 to 1/2 or higher rates. Normally, puncturing causes uneven protection due to the process of random interleav-ing. This problem can be solved with a mod-k in-terle...
متن کاملMinimality for punctured convolutional codes
AhtracrThis paper investigates encoders optimization for Hamming weight after periodic puncturing, rind discusses minimality issues that may affect the performanoe of the punctured encoders. Periodically puncturing a minimal encoder produces a higher rate encoder that may or may not be minimal. If it is not minimal, it may have a zero-output loop and it may be Catastrophic. A code search can us...
متن کاملP2 Codes: Pragmatic Trellis Codes Utilizing Punctured Convolutional Codes
In a paper [ I ] , a pragmatic approach to the design of trellis codes was described whereby the basic engine of the trellis decoder was a Viterbi Decoder for the de facto industry and government standard, rate 1/2, 64state, convolutional code. In that paper, codes for 8PSK and 16-PSK modulation were described which performed almost as well as the best trellis codes of comparable complexity (fo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Journal on Selected Areas in Communications
سال: 2016
ISSN: 0733-8716
DOI: 10.1109/jsac.2015.2507758