block code 美 英 un.划区编麻码;信息组代码;分组码;分组密码 网络区块码;定长编码;块编码 英汉 网络释义 un. 1. 划区编麻码 2. 信息组代码 3. 分组码 4. 分组密码 5. 代码组
EbN0Lin=10.^(SNRs/10);pAlamouti=1/2-1/2*(1+2./EbN0Lin).^(-1/2);theoryBerAlamouti_nTx2_nRx1=pAlamouti.^2.*(1+2*(1-pAlamouti));figure(1);semilogy(SNRs,BERs_Alamouti/(N*1.0),"rd-");hold on;semilogy(SNRs,theoryBerAlamouti_nTx2_nRx1,"g*-");legend("Alamouti","theory 21...
Modern cryptography is heavily based on mathematical theory and computer science practice. Cryptographic algorithms are designed around computational hardness assumptions which make these algorithms hard to break in practice by any adversary. It is theoretically possible to break such a system, but not pr...
Keywords: BL-function; BL-code; binary linear block codes; coding theory; BL-algebra1. Introduction 𝐻𝑎𝑗𝑒𝑘Hajek, in 1998, introduced 𝐵𝐿BL-algebra in order to provide a general framework for formalizing statements of a fuzzy nature [1]. 𝐵𝐿BL-algebra is the algebraic st...
Not all blockchains are 100% impenetrable. They are distributed ledgers that use code to create the security level they have become known for. If there are vulnerabilities in the coding, they can be exploited. A new and smaller chain might be susceptible to this kind of attack, but the at...
Error-Control Coding Ali Grami, in Introduction to Digital Communications, 2016 10.4 Block Codes In block codes, a block of k information bits is encoded into a block of n>k bits by adding n−k check (extra, redundant) bits derived from the k message bits. The code is then referred ...
Binary data are mapped on a dataword, of the same length as the codewords, over an additive subgroup of the field. The codes using trellises are described, and then the Viterbi algorithm for decoding is applied. The asymptotic coding gain ranges from 1.8 to 6.0 dB for QPSK going from ...
Recently, a quasi-orthogonal space-time block code (QSTBC) capable of achieving a significant fraction of the outage mutual information of a multiple-input... Sezgin,Aydin,Oechtering,... - 《IEEE Transactions on Information Theory》 被引量: 25发表: 2008年 Robust low-complexity joint space–...
Channel coding, Trellis coded modulation, Block codes, Forward error correctionThis paper presents a new family of block codes referred to as Trellis Coded Block (TCB) codes, which are built using a trellis code and a linear block code (LBC). The TCB code (TCBC) construction is based on ...
Not all blockchains are 100% impenetrable. They are distributed ledgers that use code to create the security level they have become known for. If there are vulnerabilities in the coding, they can be exploited. A new and smaller chain might be susceptible to this kind of attack, but the at...