A PREEMPTION PACKET RESERVATION MULTIPLE ACCESS (P-PRMA) PROTOCOL FOR MULTIMEDIA INTEGRATED ACCESS IN WIRELESS SYSTEM
نویسندگان
چکیده
منابع مشابه
Performance Evaluation of a Packet Reservation Media Access (PRMA) Scheme for Broadband Fixed Wireless Access
This paper introduces a packet reservation based MAC layer for broadband fixed wireless access communications. The performance of a reservation based MAC scheme is compared with the performances of Pure-ALOHA and Slotted-ALOHA MAC schemes. A simulation using OPNET Modeler is performed to compare the performance of these MAC schemes in terms of channel throughput and average packet delay.
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Packet switched technology has been demonstrated effective in cellular radio systems with short propagation delay, not only for data but also for voice transmission. In fact, packet voice can efficiently exploit speech on-off activity to improve bandwidth utilization over TDMA. Such an approach has been first suggested in the Packet Reservation Multiple Access (PRMA) technique, an adaptation of...
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The dynamic packet reservation multiple access (DPRMA) scheme, a medium access control protocol for wireless multimedia applications, is proposed and investigated. DPRMA allows the integration of multiple traffic types through a single access control mechanism that permits users to specify their immediate bandwidth requirements. The primary feature of DPRMA is the dynamic matching of the traffi...
متن کاملPacket reservation multiple access for local wireless communications
Packet switched technology has been demonstrated attractive for use in cellular radio systems with short propagation delay, not only for data but also for voice. In fact, packet voice can eeciently exploit speech on-oo activity to improve bandwidth use over TDMA. Such an approach has been rst suggested in 1], where Packet Reservation Multiple Access, an adaptation to the cellular environment of...
متن کاملPacket Reservation Multiple Access (PRMA) for Joint Speech and Data Systems
Packet Reservation Multiple Access (PRMA) can be viewed as a combination of TDMA and slotted ALOHA protocols. In PRMA, there are speech and data terminals that communicate with a base station. Downlink packets are scheduled by the base station, but for uplink access (first packet of a talkspurt or any data packet), terminals use slotted ALOHA. Speech terminals (and some data terminals, too) can...
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ژورنال
عنوان ژورنال: JES. Journal of Engineering Sciences
سال: 2006
ISSN: 2356-8550
DOI: 10.21608/jesaun.2006.111149