首页>
外国专利>
Technique for Optimization and Re-Use of Hardware In the Implementation of Instructions Used in Viterbi and Turbo Decoding, Using Carry and Save Arithmetic
Technique for Optimization and Re-Use of Hardware In the Implementation of Instructions Used in Viterbi and Turbo Decoding, Using Carry and Save Arithmetic
展开▼
机译:在维特比和Turbo解码中使用进位和保存算法的指令的实现中,硬件的优化和重用技术
展开▼
页面导航
摘要
著录项
相似文献
摘要
The present invention provides a means for optimization and re-use of hardware in the implementation of Viterbi and Turbo Decoders using carry save arithmetic. Successful provision for each target application requires that two main issues be confronted. These are: merging the computation of summation terms (a2−b2+c2) with (x2+y2+z2); and (a3+b3−c3) with (x3+y3+z3); implementing an efficient method of computing (a4−b4−c4); and merging this computation with (x4+y4+z4). The invention solves both of these issues and successfully merges the Viterbi instructions with a complete reuse of the hardware that is required for the implementation of Turbo instructions. The hardware required by both classes of instructions is optimized by efficiently employing carry save arithmetic.
展开▼