Optimal transmission policies for noisy channels
成果类型：
Article
署名作者：
Koole, G; Liu, Z; Righter, R
署名单位：
Vrije Universiteit Amsterdam; International Business Machines (IBM); IBM USA; Santa Clara University
刊物名称：
OPERATIONS RESEARCH
ISSN/ISSBN：
0030-364X
DOI：
10.1287/opre.49.6.892.10024
发表日期：
2001
页码：
892-899
关键词：
摘要：
We consider transmission policies for multiple users sharing a single wireless link to a base station. The noise. and hence the probability of correct transmission of a packet. depends on the state of the user receiving the packet. The state for each user is independent of the states of the other users and changes according to a two-state (good/bad) Markov chain. The state of a user is observed only when it transmits. We give conditions under which the optimal policy is the myopic policy, in which a packet is transmitted to the user that is most likely to be in the better of the two states. We do this by showing that the optimal value function is marginally linear in each of the users' probabilities of being in the good state. Our model also may be applied to flexible manufacturing systems with unreliable tools and networked computer systems.