Polling Deregistration for Unlicensed PCS - Selected Areas in Communications, IEEE Journal on
نویسنده
چکیده
This paper describes a polling deregistration protocol for a wireless access communications network which would support interoperability between licensed personal communications services (PCS) and unlicensed-PCS (UPCS). We show how the protocol can be efficiently implemented in the personal access communications system (PACS) for licensed PCS and in the PACS-Unlicensed Version B (PACS-UB). An analytical model is proposed to analyze the performance of the polling protocol. A cost function is derived, which can be used to estimate the optimal polling frequency.
منابع مشابه
Stochastic Petri Net Models of Polling Systems
We consider finite-population and finite-capacity polling systems. The behavior of these systems is described by means of generalized stochastic Petri nets. The exact results for the mean response times are obtained numerically by means of the stochastic Petri net package. Finite population polling systems are generally difficult to analyze. Thus, one of the contributions of this paper is the f...
متن کاملDeregistration Strategies for PCS Networks
This paper studies three deregistration strategies (explicit, implicit, and timeout (TO) deregistration) for personal communication service (PCS) networks to determine the network conditions under which each strategy gives the best performance. Two performance measures are considered: 1) the probability that a portable cannot register (and receive service) and 2) the number of deregistration me...
متن کاملDCP: A Distributed-Control Polling MAC Protocol: Specifications and Comparison with DQDB
This paper describes and analyzes a novel MAC protocol named distributed-control polling (DCP), which has been designed to bring together the most interesting features of distributed-control MAC protocols (e.g., DQDB) and centralized token-passing MAC protocols (e.g. , FASNET, FDDI, EXPRESS-NET). From the fully distributed MAC protocols, DCP acquires the capability to guarantee both a complete ...
متن کاملGuaranteed Quality-of-Service Wireless Access to ATM Networks
In this paper, we study the problem of wireless access to ATM. We consider three classes of ATM sources: constant bit rate (CBR), variable bit rate (VBR) and available bit rate (ABR). We propose a polling scheme with nonpreemptive priority. Under such a scheme, we derive suucient conditions such that all the CBR sources satisfy their jitter constraints and all the VBR sources satisfy their dela...
متن کاملResolving mobile database overflow with most idle replacement
In a personal communications service (PCS) network, mobility databases called visitor location registers (VLRs) are utilized to temporarily store the subscription data and the location information for the roaming users. Because of user mobility, it is possible that the VLR is full when a mobile user arrives. Under such a circumstance, the incoming user has no VLR record and thus cannot receive ...
متن کامل