Characterizing the interaction between routing and MAC protocols in ad-hoc networks

Barrett, Chris; Marathe, Achla; Marathe, Madhav V.; Drozda, Martin

doi:10.1145/513810.513812

Cited by 38 publications

(24 citation statements)

References 4 publications

(4 reference statements)

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“…It is of course infeasible to execute 10 10 simulations. We therefore chose 1000 of these combinations at random and ran 300 independent simulations of 100 seconds for each combination, using the selection scenario in Table III 1 . We then computed the delivery ratio for each of these 300 simulations and averaged them.…”

Section: B Selection Methodologymentioning

confidence: 99%

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Discovering Variables that Affect MANET Protocol Performance

Kurkowski

Navidi

Camp

2007

IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference

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Mobile Ad Hoc Networks (MANETs) are usually studied through simulation. Network simulators allow users, in principle, to set values for several hundred variables. A few of these variables, including node speed, node pause time, and packet size, receive much of the attention in MANET simulation studies, because their values are generally believed to have an important effect on simulation results (e.g., delivery ratio). There are, however, a number of variables that are less discussed, but which have a substantially greater effect on simulation results than those more commonly considered. Given a typical simulation scenario, we demonstrate that variables such as the number of sources and random versus fixed destinations, which have received comparatively little attention in the literature, have a substantially greater impact on delivery ratio than do variables such as node speed and pause time, which have received significant attention in the literature. Failure to consider the values of these variables in simulation studies can result in misleading conclusions regarding the performance of routing protocols. We conclude that before investigators draw firm conclusions about the performance of a MANET routing protocol, they should examine the effects of a wider variety of variables than has generally been the practice.

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Section: B Selection Methodologymentioning

confidence: 99%

“…Some previous studies (e.g., [1], [11], [15], [16]) have used design of experiments (DOE) and analysis of variance (ANOVA) to study the effects of small numbers of variables. When focusing on a small number of variables of interest, many other variables are held constant.…”

Section: Introductionmentioning

confidence: 99%

Discovering Variables that Affect MANET Protocol Performance

Kurkowski

Navidi

Camp

2007

IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference

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“…Although this simplifies network design, the behavior of a protocol can be affected by the protocol above or below it in the stack. Preliminary indications are that, because of the differences in layers one and two between mobile ad-hoc networks and wired IP networks, performance in mobile ad-hoc networks can be significantly impacted by inter-layer interactions [25,26]. In particular, awareness of routing over two hop neighbors rather than just nearest neighbors can significantly smooth traffic flows in an ad hoc networks.…”

Section: Mobile Ad Hoc Networkmentioning

confidence: 99%

Dynamic message prioritization in tactical wireless MANET

Mayhew

2010

2010 IEEE Aerospace Conference

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Normal design practice is to decouple the design of applications using a network from the design of the network itself. Designers optimize network performance by only focusing on network transport layer mechanisms for robustness (connectivity), efficiency (throughput), & speed of service (latency). Applications offer loads to the network and rely on the QoS function in the network to prioritize the traffic flows. By contrast, network centric operations focus on application layer features like situation awareness and synchronization to enhance force effectiveness. Therefore, in contrast to enterprise networks in which QoS processes messages based on fixed priorities by data type, in mission orientated MANET, QoS must be a cooperative function between application and network resource management that uses dynamic priority allocation derived from task priorities established by commanders within echelon hierarchies 1,2 .

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“…For the routing overhead, the simulation scenarios considered AODV as the routing protocol, based on its better performance in an IEEE 802.11 wireless environment context (e.g. [23]). The routing traffic load appears to be less than 1 Kb/s per node that is negligible when compared to the network capacity and allows for the routing overhead to be ignored [16].…”

Section: Introductionmentioning

confidence: 99%