On applying network coding to wireless ad hoc networks a study of robustness, efficiency and cross layer synergy

... between network layer and application layer The availability of cross- layer information can greatly help both in network layer and in application layer By taking the offered load information from ... physical radio Without such kind of information, transport and application layers cannot adapt (or react) to the additional physical -layer time-varying constraints su...

Ngày tải lên: 09/09/2015, 11:24

... examined the uniform throughput of large ad hoc networks confined to a region of fixed area It was found that, for a large enough total area, as the total number of nodes increases, the achievable ... achievable throughput can exhibit an up-anddown behavior reaching a a maximum at a critical spatial node density that is proportional to a power of t...

Ngày tải lên: 22/06/2014, 00:20

... message on the performance of opportunistic network coding scheme We then use the findings for further study of network coding scheme on large scale wireless ad- hoc networks We find out there is an ... mobile ad- hoc networks In this thesis we propose to first study and investigate the performance behavior and key control parameters of opportunistic...

Ngày tải lên: 16/10/2015, 11:59

... 20–30] for ad hoc networks with directional antennas are based on the IEEE 802.11 four-way handshake, with some adaptations to take advantage of directional communications Such adaptations include, ... this section More information about directional antenna models is found in [15–18] In wireless ad hoc networks with omnidirectional antennas, there is only one type...

Ngày tải lên: 21/06/2014, 23:20

... represents the local topological status of the wireless ad hoc network To a certain extent, the node locations and their corresponding degrees would affect the configuration of the wireless ad hoc network ... from (3) and reflects the distribution of A in the Y − Z plane Thus, the problem in three-dimensional space can be reduced to the combination of...

Ngày tải lên: 22/06/2014, 22:20

... Preface VII Section MAC Protocols for Wireless Ad-Hoc Networks Chapter Comparison of the Maximal Spatial Throughput of Aloha and CSMA in Wireless Ad-Hoc Networks B Blaszczyszyn, P Mühlethaler ... for Wireless Ad-Hoc Networks Provisional chapter Chapter Comparison of the Maximal Spatial Throughput of Comparison of the Maximal Spatial Throughput of Aloha and CSMA in Wireless...

Ngày tải lên: 14/03/2014, 21:20

... second mechanism, adaptive pacing, is used for regulating the data flow in a more balanced and fair way Adaptive pacing adds an extra interval to the backoff time, which is equal to the transmission ... However, only a single path is used for data transmission and the second one maintained as a backup path to minimise the chance of route unavailability To select a primary path...

Ngày tải lên: 21/06/2014, 00:20

... http://jwcn.eurasipjournals.com/content/2 011 /1/ 3 10 11 12 13 14 15 Page 12 of 12 T Korakis, Z Tao, Y Slutskiy, S Panwar, A cooperative MAC protocol for ad hoc networks IEEE Pervasive Computing and ... ITU-R M .12 25 http://www.itu.int/oth/R0A0E00000C/en (2009) doi :10 .11 86 /16 87 -14 99-2 011 -3 Cite this article as: Khalid et al.: Coherence time-based cooperativ...

Ngày tải lên: 21/06/2014, 03:20

... RadioChannelManager ∗ rcm; RadioChannelManager PathLoss ∗ pl; ReceiverNoise ∗ rn; FastFading ∗ ff; SlowFading ∗ sf; FastFading double getFastFading() { return 1; } double getFastFading(FastFadingInfo ... return 1; } SlowFading FastFadingInfo double getSlowFading() { return 1; } double getSlowFading(SlowFadingInfo ∗ sfi) { return 1; } GroundBasedShadowing SlowFadingInfo Figure 5: Radio channel m...

Ngày tải lên: 21/06/2014, 23:20

... an intelligent early packet discards (I-EPD) scheme for jitter-tolerant video streaming over a multi-hop wireless ad hoc network A video packet temporarily buffered at IN on a wireless ad hoc ... paper we propose an intelligent early packet discard (I-EPD) for realtime video streaming over a wireless ad hoc network An IN on the path from a video serv...

Ngày tải lên: 21/06/2014, 23:20

... Also, in order to provide assured QoS, we propose multiple disjoint paths (minimum two) routing as opposed to single path routing Single path routing is not reliable The path may be broken during ... are two types of disjoint paths, namely, nodedisjoint paths and link -disjoint paths Node -disjoint paths are also link -disjoint, but not vice versa An example is illus- trated in...

Ngày tải lên: 22/06/2014, 19:20

... The TCP instability problem in 802.11-based wireless ad hoc networks was first reported in [1], and it was further investigated in [2] The TCP unfairness problem in multihop wireless ad hoc networks ... propose a busy tone assisted broadcast and link error detection scheme with low overhead and good energyefficiency, where only the sender needs to transmit two short m...

Ngày tải lên: 22/06/2014, 22:20

... in wireless networks: efficient protocols and outage behavior,” IEEE Transactions on Information Theory, vol 50, no 12, pp 3062–3080, 2004 [4] M Qin and R S Blum, Capacity of wireless ad hoc networks ... wireless networks, ” IEEE Transactions on Information Theory, vol 46, no 2, pp 388–404, 2000 [2] S Toumpis and A J Goldsmith, Capacity regions for wireless ad hoc netwo...

Ngày tải lên: 22/06/2014, 22:20

... in wireless networks: efficient protocols and outage behavior,” IEEE Transactions on Information Theory, vol 50, no 12, pp 3062–3080, 2004 [4] M Qin and R S Blum, Capacity of wireless ad hoc networks ... wireless networks, ” IEEE Transactions on Information Theory, vol 46, no 2, pp 388–404, 2000 [2] S Toumpis and A J Goldsmith, Capacity regions for wireless ad hoc netwo...

Ngày tải lên: 22/06/2014, 22:20