셀룰라 이동 무선 통신망을 위한 렌덤 다원접속 프로토콜

초록

In radio communication systems, capture arises due to different distance in transmitters or different times of arrivals of packets onto the receiver and thus improves the overall system throughput of the slotted ALOHA. In cellular mobile communication systems, the transmitted signals may be experienced in serious variations because of shadowing and fading from the dense and highrise buildings. So the receiver of base station may capture the strongest one among many signals with different power levels. In this paper, we model and analyze a random access system fr cellular radio mobile networks. Mobile stations are assumed uniformly distributed over a cell and the cell is composed of many circularly disjoint bands with equal width from the base station. Then the capture may naturally occur from the different bands of different locations. We derive throughput performance of the system and show that the performance is remakable as the number of bands increases.