Medium Access Control Protocols of the PRMA Type in non-Geostationary Satellites
نویسنده
چکیده
The challenge of future mobile multimedia networks is to provide worldwide tetherless communication services. Low Earth Orbit-Mobile Satellite Systems (LEO-MSSs) will play a significant role by filling the coverage gaps of future generation terrestrial cellular networks. This lecture presents research results on demand-assignment Medium Access Control (MAC) schemes able to share efficiently LEO satellite resources among users and to support isochronous traffics and the ubiquitous access to the Internet.
منابع مشابه
Performance Evaluation of the PRMA Protocol for Voice and Data Transmissions in Low Earth Orbit Mobile Communication Systems
The Universal Mobile Telecommunications System (UMTS) will provide multimedia services to users in whatever environment via uniform service access procedures. Efficient Medium Access Control (MAC) protocols are needed to guarantee high capacity. This paper deals with Packet Reservation Multiple Access (PRMA), an efficient MAC protocol that has been widely studied in terrestrial microcellular sy...
متن کاملCognitive medium access control protocols for secondary users sharing a common channel with time division multiple access primary users
The unused time slots in a primary time division multiple access (TDMA) network are regarded as the potential channel access opportunities for secondary users (SUs) in cognitive radio (CR). In this paper, we investigate the medium access control protocols that enable SUs to access a common TDMA channel with primary users (PUs). The primary traffic is assumed to follow a Bernoulli random process...
متن کاملMulti-channel Medium Access Control Protocols for Wireless Sensor Networks: A Survey
Extensive researches on Wireless Sensor Networks (WSNs) have been performed and many techniques have been developed for the data link (MAC) layer. Most of them assume single-channel MAC protocols. In the usual dense deployment of the sensor networks, single-channel MAC protocols may be deficient because of radio collisions and limited bandwidth. Hence, using multiple channels can significantly ...
متن کاملMulti-channel Medium Access Control Protocols for Wireless Sensor Networks: A Survey
Extensive researches on Wireless Sensor Networks (WSNs) have been performed and many techniques have been developed for the data link (MAC) layer. Most of them assume single-channel MAC protocols. In the usual dense deployment of the sensor networks, single-channel MAC protocols may be deficient because of radio collisions and limited bandwidth. Hence, using multiple channels can significantly ...
متن کاملA probing process for dynamic resource allocation in fixed broadband wireless access networks
This paper deals with the support of both real-time and non-real-time communication services in a broadband fixed wireless access network. It investigates the feasibility of dynamically allocating the bandwidth not utilized by other sectors in the staggered resource allocation method. A new medium-access control (MAC) protocol based on the proposed probing process that does not need information...
متن کامل