R. Dube et al. Signal stability based adaptive routing for ad hoc mobile networks, February 1997.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....A similar accumulative approach may be taken to channel reliability where local reliability measures are accumulated. Such measures include direct signal strenght indicators and packet error statistics but also more advanced measures taking into account connection stability as described in [5]. More advanced allocation schemes increasing reliability by retransmission may be considered but are not discussed any further. Any channel request reaching the end reciever would ideally define a feasible route, i.e. a route fullfilling QoS requirements. Among such routes one or more are ....

R. Dube, C. Rais, K. Wang and S. Tripathi, "Signal Stability based Adaptive Routing for Ad-Hoc Mobile Networks",IEEE Personal Communications, pp. 36-45, February 1997.

....messages from the source to the destination in a multihop fashion. To support multihop communication in a MANET, a mobile host has to work as a router and cooperate with other hosts to nd routes and relay messages. Routing has been studied intensively under a MANET environment (e.g. unicast [2, 3, 6, 8, 9, 10, 13, 18], multicast [4, 7] and geocast [11] A working group called manet has been formed in the Internet Engineering Task Force (IETF) to stimulate research in MANET [5, 14] Applications of MANETs appear in places where xed network infrastructures are dicult to build (e.g. eets in the ocean, air ....

....Finally, we comment that there should be a neighbor discovery mechanism running at each host to estimate its current n. This can be simply achieved by having each host send a HELLO packet periodically. Such information may be readily available from other protocols (e.g. the routing protocols in [6, 10, 18] all send HELLO periodically) 9 Figure 3: Abstract shapes of the threshold function C(n) for the adaptive counter based scheme. 3.2 Adaptive Location Based Scheme The location based scheme is shown to outperform the counter based scheme in [15] However, using a xed threshold, the scheme ....

R. Dube, C. D. Rais, K.-Y. Wang, and S. K. Tripathi. Signal stability based adaptive routing for ad hoc mobile networks. In IEEE Personal Communications, Feb. 1997.

....here is far from being exhaustive. Below we will describe some other routing protocols which employ different optimization criteria as the ones we have previously described. 3.4. 1 Signal Stability Routing Another on demand protocol is the Signal Stability Based Adaptive Routing protocol (SSR) [Dube 1997]. Unlike the algorithms described so far, SSR selects routes based on the signal strength (weak or strong) between nodes and a node s location stability. The signal strengths of neighboring nodes are obtained by periodic beacons from the link layer of each neighboring node. This route selection ....

R. Dube, "Signal stability based adaptive routing for ad hoc mobile networks," In Proc. of lEEE Personal Communications, February 1997, 36-45.

....in mobile ad hoc networks. To name a few, associativity based routing protocol [26] uses a route stability metric for routing in mobile ad hoc networks. The objective is to select long lived links according to the associativity of the nodes involved. In signal stability based adaptive routing [27], routing is based on both the signal strength and location stability. The link quality is estimated according to the signal strength of received beacons from its neighbors. In [28] a sub layer called Sub Routing Layer between the network layer and the MAC layer is proposed to provide a ....

R. Dube, C.D. Rais, K. Wang, and S.K. Tripathi, "Signal stability based adaptive routing for ad-hoc mobile networks," in IEEE Personal Communications Magazine, Feb. 1997.

....The reply is then routed back through the same path through which it had come. Route mantainance is accomplished through the use of route error packets and acknowledgements. 10 Temporally Ordered Routing Algorithm (TORA) 64] Associativity Based Routing (ABR) 83] Signal Stability Routing (SBR) [26] are other examples of similar on demand ad hoc routing protocols. Adaptability and self con guration are important parameters of any ad hoc routing protocol. The eciency and performance of ad hoc routing protocols will a ect the eciency of service execution and composition at the higher layers. ....

R. Dube et. al. Signal stability based adaptive routing for ad-hoc mobile networks. IEEE. Personal Communications., pages 36-45, February 1997.

....However, to maintain the associativity of a path, ABR relies on the fact that each node is beaconing periodically. This beaconing creates additional routing overhead. 3.9 Signal Stability Based Routing SSR 3.9. 1 Description 33 Signal Stability Based Routing protocol (SSR) presented in [Dub97] is an ondemand routing protocol that selects routes based on the signal strength between nodes and a node s location stability. This route selection criterion has the effect of choosing routes that have stronger connectivity. SSR comprises of two cooperative protocols: the Dynamic Routing ....

R. Dube, "Signal Stability based Adaptive Routing for Ad-Hoc Mobile Networks," IEEE Personal Communication, Feb. 1997, pp. 36-45.

....the support of a fixed structure. There is a direct communication among the neighboring devices, but non neighboring devices requires a robust and intelligent routing strategy to ensure reliable and efficient communication. Various routing protocols have been proposed for the ad hoc scenario [2], 4] 5] 6] The Destination Sequenced Distance Vector (DSDV) 6] routing protocol maintains an exhaustive account of network topology in a routing table which is updated in accordance with the dynamic changes in the topology. The Dynamic Source Routing (DSR) 4] and Ad hoc OnDemand Distance ....

....and AODV, the first route request that reaches the destination is accepted without an estimation of the time for which this route will last. This route may contain weak links and the frequent route failures that ensue can lead to throughput degradation. The Signal Strength Adaptive (SSA) protocol [2] uses the stability of individual links as the route selection criterion. Each nodes classifies its neighbors as strongly weakly connected on the basis of link layer beacons sent periodically. SSA ensures that the route established is strongly connected. However, this assessment of connectivity of ....

R. Dube, C.D. Rais, K. Wang and S.K. Tripathi, "Signal Stability Based Adaptive Routing for Ad-Hoc mobile networks",IEEE Personal Communications, Feb. 1997.

....range constraint of transceivers, two mobile hosts may communicate with each other indirectly, by having other mobile hosts relay their packets. Several routing protocols have been proposed for a MANET to support the delivery of packets between mobile hosts in a dynamically changing topology [4, 6, 11, 8, 12]. In a MANET, a route, while being used for transmission, may become worse due to host mobility or the system may newly form some better routes. Existing protocols, such as DSR, SSA, AODV, and ZRP, however, will stick on a fixed route between a pair of mobile hosts once it is discovered, until the ....

....have proposed to use reactive style protocols, where routes are only constructed on demand. Indeed, propagating link state information in the proactive approach is quite costly. Many reactive protocols, such as Dynamic Source Routing (DSR) 8] Signal Stabilitybased Adaptive Routing(SSA) [4], and Ad Hoc On Demand Distance Vector Routing (AODV) 11] have been claimed to outperform the proactive protocols. Recently, a hybrid of these two approaches, called the Zone Routing Protocol (ZRP) 6] is also proposed. This paper studies the route optimization problem in a MANET using a ....

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R. Dube, C. Rais, K. Wang, and S. Tripathi. Signal stability based adaptive routing for ad--hoc mobile networks. In IEEE Personal Communications, Feb. 1997.

....hosts do not have such need, thus wasting the limited wireless bandwidth, many researchers have proposed to use reactive style protocols, where routes are only constructed on demand. Many reactive protocols, such as Dynamic Source Routing (DSR) 14] Signal Stabilitybased Adaptive Routing(SSA) [7], and Ad Hoc On Demand Distance Vector Routing (AODV) 18] have been proposed based on such on demand philosophy. Recently, a hybrid of these two approaches, called the Zone Routing Protocol (ZRP) 11] is also proposed. Routing in a reactive protocol typically consists of three parts: route ....

....to communicate with another host, it first tries to discover a good route to the destination, on which the data packets are forwarded. Route maintenance, by its name, should address the problem when a route becomes worse or even broken due to host mobility. However, in existing protocols, such as [7, 11, 14, 18], a sending host will stick with the discovered route until it is expired or broken, even if some better routes are newly being formed in the system. One straightforward solution is to run the route discovery procedure more frequently to detect such possibility. However, this is very costly as ....

[Article contains additional citation context not shown here]

R. Dube, C. Rais, K. Wang, and S. Tripathi. Signal stability based adaptive routing for ad--hoc mobile networks. In IEEE Personal Communications, Feb. 1997.

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R. Dube et al. Signal stability based adaptive routing for ad hoc mobile networks, February 1997.

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R. Dube et al. Signal stability based adaptive routing for ad hoc mobile networks, February 1997.

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R. Dube, C.D. Rais, K. Wang, and S.K. Tripathi, "Signal stability based adaptive routing for ad-hoc mobile networks," in IEEE Personal Communications Magazine, Feb. 1997.

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