摘要:
An address generation apparatus for quadratic permutation polynomial (QPP) interleaver receives several configurable parameters and uses a plurality of QPP units to compute and outputs a plurality of interleaving addresses according to a QPP function Π(i)=(f1i+f2i2) mod k, where f1 and f2 are QPP coefficients, k is information block length of an input sequence, 0≦i≦k−1, and mod is a modulus operation. Each of the plurality of QPP units is a parallel computation unit, and outputs in parallel a corresponding group of interleaver addresses, where Π(i) is also a ith interleaving address generated by the apparatus.
摘要翻译:二次置换多项式(QPP)交织器的地址生成装置接收多个可配置参数,并使用多个QPP单元根据QPP函数&Pgr计算并输出多个交织地址;(i)=(f1i + f2i2)mod k ,其中f1和f2是QPP系数,k是输入序列的信息块长度,0≦̸ i≦̸ k-1,mod是模运算。 多个QPP单元中的每一个是并行计算单元,并且并行地输出相应的交织器地址组,其中&(i)也是由该设备生成的第i个交织地址。
摘要:
A multiplexing method for data switching is disclosed. In the method, a continuous data is received, and the continuous data includes a plurality of super frames, and each super frame includes a plurality of frames. These super frames are divided into a set of even super frames and a set of odd super frames. The frames included in the set of odd super frames are sorted by corresponding required bit error rate of each frame decreasingly or increasingly. The frames included in the set of even super frames are sorted by the required bit error rate of each frame increasingly or decreasingly. An encoder is used to encode these sorted super frames.
摘要:
A multiplexing method for data switching is disclosed. In the method, a continuous data is received, and the continuous data includes a plurality of super frames, and each super frame includes a plurality of frames. These super frames are divided into a set of even super frames and a set of odd super frames. The frames included in the set of odd super frames are sorted by corresponding required bit error rate of each frame decreasingly or increasingly. The frames included in the set of even super frames are sorted by the required bit error rate of each frame increasingly or decreasingly. An encoder is used to encode these sorted super frames.
摘要:
A decoder suitable for use in a digital communications system utilizing an RS(n′, k′) code modified from an RS(n, k) code receives n′-symbol vectors each including k′ message symbols and r′=n′-k′ parity symbols and decodes the n′-symbol vectors to correct errors therein, wherein n, k, n′, and k′ are integers, and k′
摘要翻译:适用于使用从RS(n,k)码修改的RS(n',k')码的数字通信系统中的解码器接收每个包括k个消息符号的n个符号向量,并且r'= n'- k'个奇偶校验符号并对n'符号向量进行解码以校正其中的误差,其中n,k,n'和k'是整数,并且k' = R S(αi + 1)。 。 。 ,nk-1,其中R x(x)= r n n-1 x n-1 + r n' -2 n'-2 +。 。 。 + r <0>,以及用于使用其校正子以及一个擦除定位器多项式sigma(x)来找出每个n符号向量中的错误的位置和值的装置 )。
摘要:
An address generation apparatus for a quadratic permutation polynomial (QPP) interleaver is provided. It comprises a basic recursive unit, and L recursive units represented by first recursive unit up to Lth recursive units. The apparatus inputs a plurality of configurable parameters according to a QPP function Π(i)=(f1i+f2i2) mod k, generates a plurality of interleaver addresses in serial via the basic recursive unit, and generates L groups of corresponding interleaver addresses via the first up to the Lth recursive units, wherein Π(i) is the i-th interleaver address generated by the apparatus, f1 and f2 are QPP coefficients, and k is information block length of an input sequence, 0≦i≦k−1.
摘要翻译:提供了一种用于二次置换多项式(QPP)交织器的地址生成装置。 它包括一个基本递归单元,和由递归单位表示的L个递归单元,直到第L个递归单元。 该设备根据QPP功能&Pgr输入多个可配置参数;(i)=(f1i + f2i2)mod k,经由基本递归单元串行生成多个交织器地址,并通过以下方式生成L组对应的交织器地址 第一个到第L个递归单元,其中&Pgr;(i)是由装置生成的第i个交织器地址,f1和f2是QPP系数,k是输入序列的信息块长度,0&nlE; i&nlE; k -1。
摘要:
An address generation apparatus for a quadratic permutation polynomial (QPP) interleaver is provided. It comprises a basic recursive unit, and L recursive units represented by first recursive unit up to Lth recursive units. The apparatus inputs a plurality of configurable parameters according to a QPP function Π(i)=(f1i+f2i2) mod k, generates a plurality of interleaver addresses in serial via the basic recursive unit, and generates L groups of corresponding interleaver addresses via the first up to the Lth recursive units, wherein Π(i) is the i-th interleaver address generated by the apparatus, f1 and f2 are QPP coefficients, and k is information block length of an input sequence, 0≦i≦k−1.
摘要翻译:提供了一种用于二次置换多项式(QPP)交织器的地址生成装置。 它包括一个基本递归单元,和由递归单位表示的L个递归单元,直到第L个递归单元。 该设备根据QPP功能&Pgr输入多个可配置参数;(i)=(f1i + f2i2)mod k,经由基本递归单元串行生成多个交织器地址,并通过以下方式生成L组对应的交织器地址 第一个到第L个递归单元,其中&Pgr;(i)是由装置生成的第i个交织器地址,f1和f2是QPP系数,k是输入序列的信息块长度,0&nlE; i&nlE; k -1。
摘要:
An address generation apparatus for quadratic permutation polynomial (QPP) interleaver receives several configurable parameters and uses a plurality of QPP units to compute and outputs a plurality of interleaving addresses according to a QPP function Π(i)=(f1i+f2i2) mod k, where f1 and f2 are QPP coefficients, k is information block length of an input sequence, 0≦i≦k−1, and mod is a modulus operation. Each of the plurality of QPP units is a parallel computation unit, and outputs in parallel a corresponding group of interleaver addresses, where Π(i) is also a ith interleaving address generated by the apparatus.
摘要翻译:二次置换多项式(QPP)交织器的地址生成装置接收多个可配置参数,并使用多个QPP单元根据QPP函数Pi(i)=(f1i + f2i2)mod k来计算并输出多个交织地址, 其中f1和f2是QPP系数,k是输入序列的信息块长度,0 @ i k-1,mod是模运算。 多个QPP单元中的每一个是并行计算单元,并且并行地输出对应的交织器组地址,其中Pi(i)也是由该装置生成的第i个交织地址。
摘要:
A decoder suitable for use in a digital communications system utilizing an RS(n′, k′) code modified from an RS(n, k) code receives n′-symbol vectors each including k′ message symbols and r′=n′−k′ parity symbols and decodes the n′-symbol vectors to correct errors therein, wherein n, k, n′, and k′ are integers, and k′