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Journal ArticleDOI

Routing in frequency-hop packet radio networks with partial-band jamming

TLDR
It is found that LRR is an effective way for dealing with mobile jamming in a frequency-hop packet radio network and significant increases in throughput and end-to-end probability of success are obtained with LRR.
Abstract
Research in adaptive, decentralized routing for frequency-hop packet radio networks with mobile partial-band jamming. A routing technique called least-resistance routing (LRR) is developed, and various versions of this routing method are examined. LRR uses a quantitative assessment of the interference environment experienced by a radio's receiver to determine a resistance value for that radio. Two components for the interference environment are considered: transmissions from other radios and partial-band jamming. The resistances for each of the radios in a particular path are combined to form the path resistance, and packets are forwarded on the path with the smallest resistance. Comparisons are made between different versions of LRR and between LRR and previously developed adaptive routing techniques. It is found that LRR is an effective way for dealing with mobile jamming in a frequency-hop packet radio network. Significant increases in throughput and end-to-end probability of success are obtained with LRR. >

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Citations
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Journal ArticleDOI

Securing ad hoc networks

TL;DR: This article takes advantage of the inherent redundancy in ad hoc networks-multiple routes between nodes-to defend routing against denial-of-service attacks and uses replication and new cryptographic schemes to build a highly secure and highly available key management service, which terms the core of this security framework.
Journal ArticleDOI

Hierarchically-organized, multihop mobile wireless networks for quality-of-service support

TL;DR: This paper describes three key components of the MMWN system: the clustering procedures for defining a virtual, hierarchical control structure superimposed on a large network of mobile switches and endpoints; the location management procedures for determining the current locations of mobile endpoints relative to the hierarchicalcontrol structure; and the virtual circuit management Procedures for setting up and repairing virtual circuits as switches andendpoints move.
Proceedings ArticleDOI

Source-tree routing in wireless networks

TL;DR: Simulation results show that STAR is an order of magnitude more efficient than any topology-broadcast protocol, and four times moreefficient than ALP, which was the most efficient table-driven routing protocol based on partial link-state information reported to date.
Journal ArticleDOI

A survey of routing techniques for mobile communications networks

TL;DR: The impact of node mobility and wireless communication on routing system design is discussed, and the set of techniques employed in or proposed for routing in mobile wireless networks is surveyed.
Patent

A unified routing scheme for ad-hoc internetworking

TL;DR: In this article, the shortest distance to the destination node is determined according to one or more link-state and/or node-state metrics regarding communication links and nodes along the path to destination node.
References
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Journal ArticleDOI

The DARPA packet radio network protocols

TL;DR: The algorithms are described and illustrated how the PRNET provides highly reliable network transport and datagram service, by dynamically determining optimal routes, effectively controlling congestion, and fairly allocating the channel in the face of changing link conditions, mobility, and varying traffic loads.
Journal ArticleDOI

Frequency-hop transmission for satellite packet switching and terrestrial packet radio networks

TL;DR: The performance of frequency-hop transmission in a packet communication network is analyzed and new measures of "local" performance are defined and evaluated for networks of this type, and new concepts that are important in the design of these networks are introduced.
Journal ArticleDOI

Bayesian methods for erasure insertion in frequency-hop communication systems with partial-band interference

TL;DR: The erasure of unreliable symbols improves the performance of most types of error-control coding if a good method is used to decide which symbols should be erased and error probabilities are reduced by several orders of magnitude.
BookDOI

Regeneration and networks of queues

G. S. Shedler
TL;DR: This paper focuses on the development of a model for Regenerative Simulation of Semi-Markovian Networks, which automates the very labor-intensive and therefore time-heavy process of Regenerative Stochastic Processes.
Proceedings ArticleDOI

A Distributed Routing Design for a Broadcast Environment

TL;DR: The need for distributed network control in a packet radio environment, the criteria used for its evaluation, and an overview of the network algorithms chosen to maintain routing information and to route user traffic are presented.