Title :
Time-shared TMR for fault-tolerant CORDIC processors
Author :
Kwak, Jae-Hyuck ; Piuri, Vincenzo ; Swartzander, E.E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA
Abstract :
Presents a low-cost approach to concurrent error correction in high-performance CORDIC processors by using time-shared triple modular redundancy. Operands are partitioned into three sets of disjoint digits and operations are performed three times on different hardware components to correct possible errors by majority voting. The approach has limited latency increase and throughput reduction. Pipelining can be used to maintain the same throughput as a conventional design
Keywords :
circuit complexity; digital arithmetic; error correction; fault tolerant computing; iterative methods; logic circuits; redundancy; signal processing; concurrent error correction; disjoint digits; fault-tolerant CORDIC processors; low-cost approach; majority voting; pipelining; time-shared triple modular redundancy; Arithmetic; Circuit faults; Complexity theory; Error correction; Fault tolerance; Hardware; Pipeline processing; Redundancy; Throughput; Vectors;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-7041-4
DOI :
10.1109/ICASSP.2001.941149
