منابع مشابه
The Aloha System
THE ALOHA SYSTEM is composed of a related series of contracts and grants from a variety of funding agencies with principal support from ARPA, which deal with two main themes: computer communications (TASK 1), and computer structures (TASK 2). Under computer-communications there is work in (a) Studies on computer communications using radio and satellites, (b) The development of a prototype radio...
متن کاملSuperimposed Codes and ALOHA system
{We study an application of superimposed codes 1, 2, 3] to the ALOHA-system 4] with a central station. These codes increase the transmission rate 4].
متن کاملUser registration in broadband slotted Aloha networks
This paper proposes an algorithm for user terminals in broadband slotted Aloha networks to jointly succeed in time synchronization, power adjustment, and registration to the network control center. The performance is analyzed considering nonnegligible initial time uncertainty, nonnegligible power uncertainty, and minimizing cochannel interference as well as binary feedback from the central rece...
متن کاملDynamic Connectivity in ALOHA Ad Hoc Networks
We consider an ad hoc network which uses multihop routing and slotted ALOHA for its MAC contention. We show that the minimum time required for a packet to reach the destination from the origin scales linearly with the distance. We define this delay as the minimum time required for a causal path to form between the source and destination. We derive the distributional properties of the connection...
متن کاملSmart-Aloha for Multi-Hop Wireless Networks
This paper presents a novel slotted ALOHAbased protocol for use in ad hoc networks where nodes are equipped with adaptive array smart antennas. The protocol relies on the ability of the antenna and DoA (Direction of Arrival) algorithms to identify the direction of transmitters and then beamform appropriately to maximize SINR (Signal to Interference and Noise Ratio) at the receiver. The performa...
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ژورنال
عنوان ژورنال: Journal of Research of the National Bureau of Standards
سال: 1981
ISSN: 0160-1741
DOI: 10.6028/jres.086.027