Protecting short data frames by turbo coding is a challenging task because of the small interleaver size and the need for transmission efficiency. In this letter, turbo-decoding-metrics aided short cyclic redundancy check codes are applied to novel tailbiting encoded trellis codes with a twofold purpose: to stop the iterative decoding processes to achieve low-power design and to reduce fractional coding-rate loss. Significant coding gains can be achieved by actually increasing the transmission rate with a negligible increase in power consumption. Performance improvement is demonstrated over additive white Gaussian noise channels. The savings is up to 21.4% for the transmission throughput and 21.5% for the energy consumption of the turbo decoder when frame size 49 is used.
Bibliographical noteFunding Information:
Paper approved by W. E. Ryan, the Editor for Modulation, Coding, and Equalization of the IEEE Communications Society. Manuscript received November 12, 2001; revised September 4, 2002 and January 24, 2004. This work was supported by the Army Research Office under Contract DA/DAAD19-01-1-0705. This paper was presented in part at the IEEE International Conference on Acoustics, Speech, and Signal Processing, Salt Lake City, UT, May 2001.