Slowly decreasing throughput algorithms for random access channel
Teletraffic Engineering in the Internet EraProceedings of the International Teletraffic Congress - ITC-I7, volume 4 of Teletraffic Science and Engineering, Elsevier, (2001)DOI: http://dx.doi.org/10.1016/S1388-3437(01)80133-5
Abstract
A multiple power level transmission system augments the maximum throughput by selecting the power levels randomly, exhibiting the similar behavior to the standard Slotted ALOHA, where the throughput decreasing abruptly at higher traffic load conditions and consequently, drops to almost zero, leading to unstable condition. Three slowly decreasing throughput algorithms for Slotted \ALOHA\ are developed to prevent that throughput-collapse. Herein, a mobile terminal can transmit any packet to the lower power levels at a higher probability that increases the probability of only one packet at the highest power levels and thereby enhancing the capture probability. It needs no information about the network, amplifying the implementation privilege. Extensive comparisons show that the proposed slowly decreasing throughput algorithms prevent throughput-collapse under higher offered traffic load condition compared with the traditional random power level selection algorithm.