A reservation multiple access protocol for microcellular mobile-communication systems

Mitrou, Nikolas; Orinos, T.D.; Protonotarios, E.N.

doi:10.1109/25.61355

Cited by 117 publications

(39 citation statements)

References 8 publications

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“…The results presented in fig.2, show the access-delay experienced by mobiles as the number of R-slots per frame is varied. As confirmed in [3], the results presented here are characteristic of this type of PRMA scheme. When the proportion of R-slots per frame is low, the access-delay is dominated by the contribution from the contention access process.…”

Section: Resultssupporting

confidence: 89%

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A Reservation Multiple Access Scheme for an Adaptive TDMA Air-Interface

DeVile¹

1994

Wireless and Mobile Communications

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Section: Resultssupporting

confidence: 89%

“…In a variant of PRMA, the slots in the Up-link TDMA frame are not treated the same, but are split between slots where only contention-access takes place (R-slots), and slots where only the information packets are transmitted (I-slots) [3]. It is this second variant upon which the proposed reservation multiple access scheme is based, because:…”

mentioning

confidence: 99%

A Reservation Multiple Access Scheme for an Adaptive TDMA Air-Interface

DeVile¹

1994

Wireless and Mobile Communications

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“…The BS queues the successful requests and provides a grant in an information slot. Mitrou [50] pointed out that using a full slot to make a reservation is wasteful and proposed sub-dividing a request slot into mini-slots to increase the efficiency of contention. Centralized PRMA (C-PRMA) uses scheduling to give QoS guarantees [51].…”

Section: Hybrid Access Protocolsmentioning

confidence: 99%

Wireless medium access control protocols

Gummalla

Limb

2000

IEEE Commun. Surv. Tutorials

226

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he ability to communicate with anyone on the planet from anywhere on the planet has been mankind's dream for a long time. Wireless is the only medium that can enable such untethered communication. With the recent advances in VLSI and wireless technologies, it is now possible to build high-speed wireless systems that are cheap as well as easy to install and operate. However, the wireless medium is a broadcast medium, and therefore multiple devices can access the medium at the same time. Multiple simultaneous transmissions can result in garbled data, making communication impossible. A medium access control (MAC) protocol moderates access to the shared medium by defining rules that allow these devices to communicate with each other in an orderly and efficient manner. MAC protocols therefore play a crucial role in enabling this paradigm by ensuring efficient and fair sharing of the scare wireless bandwidth. Wireless MAC protocols have been studied extensively since the 1970s. The initial protocols were developed for data and satellite communications. We are now witnessing a convergence of the telephone, cable and data networks into a single unified network that supports multimedia and real-time applications like voice and video in addition to data. The multimedia applications require delay and jitter guarantees from the network. This demand of the network is known as the Quality of Service (QoS) guarantee. These requirements have led to novel and complex MAC protocols that can support multimedia traffic.This article surveys the various MAC protocols that have been proposed in the literature and compares them based on architecture (MAC co-ordination, duplexing), performance (throughput, delay, stability, contention resolution algorithms and fairness) and multimedia support (scheduling, access priorities). We confine our study to systems that span relatively small areas. The article is organized as follows. First we contrast different wireless network architectures. We then bring out the issues unique to wireless MAC protocols. The performance metrics used to compare different MAC protocols are discussed later. We then present a classification of the protocols. We will present the different classes of proposed MAC protocols and compare the pros and cons of the proposed protocols. GENERAL NETWORK CONCEPTSA wireless network is comprised of devices with wireless adapters communicating with each other using radio waves. These wireless devices are called nodes in this dissertation. The signal transmitted can be received only within a certain distance from the sender, which is called the range of the node. A base station (BS) is a special node in the network that is not mobile and is located in a central location. Wireless networks differ in the duplexing mechanism and the network architecture.AJAY CHANDRA V. GUMMALLA AND JOHN O. LIMB, GEORGIA INSTITUTE OF TECHNOLOGY T ABSTRACTTechnological advances, coupled with the flexibility and mobility of wireless systems, are the driving force behind the Anyone, Anywhere, Anytime par...

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“…Jangi and Merakos [8] consider some other reservation random-access protocol for integrated voice/data services. Mitrou et al propose the implementation of mini-slotted reservation packets within the PRMA protocol, yielding 10-15% improvements over the basic PRMA in terms of the number of users that can be supported [14]. In [15], an improved PRMA (IPRMA) is presented to increase the throughput of data terminals by allowing contending data terminals to reserve idle slots throughout the frame.…”

Section: A Medium Access Control Protocol For Voice/data Integrated Wmentioning

confidence: 99%

A Medium Access Control Protocol for Voice/Data Integrated Wireless CDMA Systems

Lim¹

2001

ETRI J

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In this paper, a medium access control protocol is proposed for integrated voice and data services in wireless local networks. Uplink channels for the proposed protocol are composed of time slots with multiple spreading codes per slot based on slotted code division multiple access (CDMA) systems. The proposed protocol uses spreading code sensing and reservation schemes. This protocol gives higher access priority to delay-sensitive voice traffic than to data traffic. The voice terminal reserves an available spreading code to transmit multiple voice packets during a talkspurt. On the other hand, the data terminal transmits a packet without making a reservation over one of the available spreading codes that are not used by voice terminals. In this protocol, voice packets do not come into collision with data packets. The numerical results show that this protocol can increase the system capacity for voice service by applying the reservation scheme. The performance for data traffic will decrease in the case of high voice traffic load because of its low access priority. But it shows that the data traffic performance can be increased in proportion to the number of spreading codes.

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A reservation multiple access protocol for microcellular mobile-communication systems

Cited by 117 publications

References 8 publications

A Reservation Multiple Access Scheme for an Adaptive TDMA Air-Interface

A Reservation Multiple Access Scheme for an Adaptive TDMA Air-Interface

Wireless medium access control protocols

A Medium Access Control Protocol for Voice/Data Integrated Wireless CDMA Systems

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