Effect of Multiple Antennas on the Transport Capacity in Large-Scale Ad Hoc Networks

2012 ◽  
Vol E95.B (10) ◽  
pp. 3113-3119
Author(s):  
Won-Yong SHIN ◽  
Koji ISHIBASHI
Keyword(s):  
Ad Hoc Networks ◽  
Large Scale ◽  
Ad Hoc ◽  
Multiple Antennas ◽  
Transport Capacity ◽  
Hoc Networks

Improving the Energy Efficiency by Cooperative Transmission in Multi-Hop Wireless Ad-Hoc Networks

2021 ◽  
Author(s):  
Salah Abdulhadi
Keyword(s):  
Ad Hoc Networks ◽  
Wireless Ad Hoc Networks ◽  
Ad Hoc ◽  
Multiple Antennas ◽  
Network Capacity ◽  
Cooperative Relaying ◽  
Cooperative Transmission ◽  
Total Power ◽  
Potential Candidate ◽  
Hoc Networks

Cooperative transmission has been recently proposed as a promising technique to combat multi-path fading and increased link reliability. It represents a potential candidate to exploit the benefits of using multiple antennas system without requiring to implement multiple antennas per terminal. There has been extensive research investigating physical layer issues of such systems; however, higher layer protocols that exploit cooperative links in ad hoc networks are still emerging in cooperative ad hoc networks, and it is important to effectively use cooperation without affecting the performance of the network. In this dissertation, we proposed a novel a characterization of the optimal multi-hop cooperative routing in ad hoc networks, and developed a metric for both evaluation. The key advantages of cooperative links are to minimize the number of hops while maintaining the QoS requirements and to minimize the end-to-end total power for a given rate. Also we showed that energy can be used more efficiently if we determine the joint optimal packet size and the optimal power allocation for both the source and the relay. For multi-flow scenario, we have proposed a clique-based inter-flow interference abstraction, and used the linear programming formulation to study the capacity gain of ad-hoc cooperative network. It is observed that the network capacity in multi-hop multi-flow settings is severely affected by interference between links and this effect increases when the cooperative relaying is imposed.

Quality of experience of voice communication in large-scale mobile ad hoc networks

2009 ◽  
Author(s):  
Christian Gottron ◽  
Andre Konig ◽  
Matthias Hollick ◽  
Sonja Bergstrasser ◽  
Tomas Hildebrandt ◽  
...  
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Large Scale ◽  
Quality Of Experience ◽  
Ad Hoc ◽  
Voice Communication ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Efficient resource discovery for large scale ad hoc networks using contacts

2002 ◽  
Vol 32 (3) ◽  
pp. 32-32 ◽  
Author(s):  
Nitin Nahata ◽  
Priyatham Pamu ◽  
Saurabh Garg ◽  
Ahmed Helmy
Keyword(s):  
Ad Hoc Networks ◽  
Large Scale ◽  
Ad Hoc ◽  
Resource Discovery ◽  
Efficient Resource ◽  
Hoc Networks
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