performance comparison of ad hoc routing protocols in ehealth applications

... effects of fading, number of dispersed bands, modulation, and coding on the performance of dispersed spectrum cognitive radio systems. The results show that the effects of fading, number of dispersed ... given in (7) which is defined as the Laplace transformofthePDFoftheSNR[19]. Let the SNR at the end of a single link in the case of conventional single band spectrum utilization be γ L,Tot . In addition, ... networks,” Ad Hoc Networks,vol.7,no.4,pp. 778–790, 2009. [14] G. Ferrari, B. Baruffini, and O. Tonguz, “Spectral efficiency- connectivity tradeoff in ad hoc wireless network,” in Proceed- ings of the International...

Ngày tải lên: 21/06/2014, 05:20

... Multi-channel Mac for Ad Hoc Networks: Handling Multi- channel Hidden Terminals Using a Single Transceiver, in 5th ACM International Symposium on Mobile Ad Hoc Networking and Computing, MobiHoc ‘04, 222–233 ... hence, the performance of multi-channel MAC schemes in ad hoc networks should be investigated in detail with respect to these measures. In the case of single-channel systems, the perfor- mances of various ... analysis of multi-channel MAC protocols in ad hoc networks Jari Nieminen * and Riku Jäntti Abstract Since delay and throughput are important Quality of Service parameters in many wireless applications, ...

Ngày tải lên: 20/06/2014, 22:20

... degradation in multihop ad hoc, networks. J Internet Eng. 2, 146–156 (2008) 38. TD Dyer, RV Boppana, A comparison of TCP performance over three routing protocols for mobile ad hoc networks, in Proceedings ... Improving TCP performance over mobile ad- hoc networks with out -of- order detection and response. in Proceedings of the International Symposium on Mobile Ad hoc Networking and Computing (MobiHoc), ... TCP performance over multipath routing in mobile ad hoc networks. IEEE Int Conf Commun. 2, 1064–1068 (2003) 43. MS Lee, Gerla, Split multipath routing with maximally disjoint paths in Ad hoc...

Ngày tải lên: 21/06/2014, 00:20

... S Routing zone of A Routing zone of B A B (a) S MRREQ MRREP MRACT Destination node Forwarding node Non-participating node Source node A B Routing zone of S Routing zone of A Routing zone of B (b) Figure ... Johnson, “Adaptive demand-driven multicast routing in multi-hop wireless ad hoc networks,” in Proceedings of the 2nd ACM Internat ional Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc ... approach is introduced to minimize the effect of this [23, 51, 55]. Instead of maintaining the routing information at every forwarding node, a source explicitly mentions the destination list in the...

Ngày tải lên: 21/06/2014, 22:20

Ngày tải lên: 22/06/2014, 22:20

... Bevacizumab) Untreated Rapamycin Vincristine Combination Vincristine plus Rapamycin Asparaginase Combination Asparaginase plus Rapamycin Sunitinib Combination Sunitinib plus Rapamycin Bevacizumab Combination Bevacizumab plus ... agent vincristine, combination vincristine plus rapamycin, single agent sunitinib, combination sunitinib plus rapamycin, single agent bevacizumab, and combina- tionbevacizumabplusrapamycin.Assoonastumors became ... rapamycin treated, asparaginase treated, asparaginase plus rapamycin combination treated, vin- cristine treated, vincristine plus rapamycin combination treated, sunitinib treated, sunitinib plus...

Ngày tải lên: 18/06/2014, 16:20

... Performance analysis of space-time block codes in time-varying Rayleigh fading channels,” in Pro- ceedings of IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP ’02), ... estimation of s via minimization of (12) would be affected by the interfering terms (1)–(3) shown in (17). In the next section, we carry out an SER analysis by first obtaining expression for the total interference ... for obtaining estimate of s is given as s = arg min r − ρs, (12) Manav R. Bhatnagar et al. 5 the expression of exact probability of error for M-QAM data received over J-independent flat fading...

Ngày tải lên: 22/06/2014, 19:20

Ngày tải lên: 09/08/2014, 04:21

Ngày tải lên: 09/08/2014, 22:23

... achieved. 10.4 Routing in Wireless Ad Hoc Networks A brief introduction to packet routing in wireless ad hoc networks was made in Chapter 2. There, it was highlighted that the performance of such protocols ... extension of the classical Bellman–Ford routing algorithm. The extensions incorporated in DSDV target freedom from loops in routing tables. In DSDV, each node maintains a routing table that contains information ... already involved in an ongoing connection. Thus, RRC also includes signaling functionality to inform mobile terminals of an upcoming change in the operating frequency of their AP. † ‘Mobile terminal...

Ngày tải lên: 29/09/2013, 21:20

... number of communication channels. This routing algorithm is combined with the prefix routing algorithm in [Chen et al., 2002]. Prefix routing is a special type of routing with a compact routing ... variable-length destination headers are inserted in data packets, which are used in combination with unicast routing tables to forward multicast packets towards multicast receivers. Instead of requiring the ... forwarding group is maintained by the senders in the receiver advertising scheme and by the receivers in sender advertising scheme. Wu [2002] proposed a method of FW maintenance via connected dominating...

Ngày tải lên: 03/06/2014, 01:08

... off). This process of pairs joining the network and leaving continues is such a way that the network is in an equi- librium in the sense of the number of nodes participating in it at any given ... regions (in terminology of [20]) instead of circular in- terference regions considered in this paper. The main results would not change. We do not consider the more general case explicitly in order ... node was in the N state be v i for 2 Note that we could easily generalize this model to take into account the effects of fading and shadowing by introducing random direction depen- dent interference...

Ngày tải lên: 22/06/2014, 19:20

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Ngày tải lên: 04/07/2014, 06:20

... “deal- ing with uncertainty”) 4 . In recent years, development of relevant information technology for disaster or crisis management is getting increasing attention from teams of interdisciplinary ... handling them within their associated timing requirement, prevents the oc- currence of system faults. For example - in the case of a datacenter, the server racks (in the event of a failed cooling ... of the actions is uncertain. Apart from this, the unavailability of resources while performing the actions can also lead to uncertain outcome of the mitigative actions (especially in completing...

Ngày tải lên: 07/03/2014, 17:20

... the impact of mobility on performance of routing protocols for adhoc networks,” in Proceedings of the 22nd Annual Joint Conference on the IEEE Computer and Communications Societies (INFOCOM ’03),pp. 825–835, ... source routing protocol for multi-hop wireless ad hoc networks,” in Ad Hoc Networking, pp. 139–172, Addison- Wesley, Reading, Mass, USA, 2001. [3] T. Camp, J. Boleng, and V. Davies, “A survey of ... Baroudi, “Bypass-AODV: improving performance of ad hoc on-demand distance vector (AODV) routing protocol in wireless ad hoc networks,” in Proceedings of the International Conference on Ambient Media...

Ngày tải lên: 21/06/2014, 11:20

... lead to better system performance. It was possible to draw conclusions independently of the gain allocation by comparing the MSE of the second-hop estimates only. Finally, we compared the protocols ... synchronization of multiple distributed nodes in a wireless network,” in Proceedings of the 8th IEEE Signal Processing Advances in Wireless Communications (SPAWC ’07), Helsinki, Finland, June 2007. [23] J. G. ... Madhow, “Distributed beamforming for information transfer in sensor networks,” in Proceedings of the 3rd International Symposium on Information Processing in Sensor Networks (IPSN ’04), pp. 81–88,...

Ngày tải lên: 21/06/2014, 17:20

... and J. Martinez-Lastra, Performance measurement of a multiagent system,” in Proceedings of the 12th IFAC Sympo- sium on Information Control Problems in Manufacturing (IN- COM ’06), Saint-Etienne, ... seconds. Two kinds of threads are classified according to their priority in critical threads and noncritical threads within the PTC. Agents within a front- end container, hosted in the PTC, are ... as real-time manu- facturing control, complex operations management (plan- ning, scheduling, bootstrap, monitoring), and coordinating Inform-result: inform Inform-done: inform Failure Accept-proposal I =...

Ngày tải lên: 22/06/2014, 05:20

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