منابع مشابه
Power Efficient Broadcasting with Cooperative Diversity in Ad hoc Networks
Cooperative diversity entails the simultaneous transmission ofinformation by multiple nodes that are in the proximity of each other; this process emulates the functionality of an antenna array. The use of cooperative communications can help combat interference and fading and hence, significantly improve the reliability of the wireless channel without the physical deployment of cumbersome antenn...
متن کاملEnergy-Efficient Broadcasting with Cooperative Transmission in Wireless Sensor Networks
Broadcasting is a method that allows the nodes in a wireless sensor network to share the data efficiently among other nodes. Due to the limited energy supplies of a sensor node, energy-efficiency is a crucial aspect in the design of broadcasting protocols. In this paper, we analyze the energy savings provided by a novel form of cooperative broadcast transmission, called the Opportunistic Large ...
متن کاملA Cooperative Broadcasting Method for a Sensor Network
Sensor networks and ad-hoc networks, which do not require a base station such as an access point, have a hidden node problem because nodes communicating at the same time cannot know each other's communication status. On other hand, in a wireless infrastructure network the access point manages the communication with the node using RTS (request to send) and CTS (clear to send). However, we cannot...
متن کاملCollision-Free Broadcasting in Wireless Ad-Hoc Networks using Cooperative Diversity
Prior Work note: when I submitted this work for publication, I was informed that the idea was not new. I encourage anyone interested in this subject to review related work by Hu and Servetto [8] and by Hong and Scaglione [6]. Especially the work by Hong and Scaglione is more mathematical and better grounded than this report. This report is being made available for what it can add to the works c...
متن کاملA Plotkin-Alamouti Superposition Coding Scheme for Cooperative Broadcasting in Wireless Networks
This paper deals with superposition coding for cooperative broadcasting in the case of two coordinated source nodes, as introduced in the seminal work of Bergmans and Cover in 1974. A scheme is introduced for two classes of destination (or relay) nodes: Close nodes and far nodes, as ranked by their spatial distances to the pair of transmitting nodes. Two linear codes are combined using the |u|u...
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ژورنال
عنوان ژورنال: IEEE Transactions on Information Theory
سال: 1974
ISSN: 0018-9448
DOI: 10.1109/tit.1974.1055232