Title :
ARQ scheme with adaptive block size for bidirectional wireless endoscopy system
Author :
Xie, Xiang ; Li, Guolin ; Wang, Zhen
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing
Abstract :
By analysing the characteristics of the communication channel in a bidirectional digital wireless endoscopy system, the authors propose an efficient automatic repeat query (ARQ) scheme, with a dynamically adaptive block size, a high data rate and an ultra-short communication distance. Two new strategies for adaptive block-size decision are also proposed. The optimum block-size formula for the wireless endoscopy system is given and analysed in detail. This ARQ scheme ensures not only the image´s communication quality at a high data rate (2 Mbit/s) but also the optimum communication-power efficiency in the capsule
Keywords :
automatic repeat request; biomedical optical imaging; biomedical telemetry; endoscopes; radiotelemetry; wireless channels; ARQ; adaptive block size; automatic repeat query scheme; bidirectional digital wireless endoscopy system; communication channel; communication-power efficiency; image communication quality;
Journal_Title :
Communications, IEE Proceedings
