Báo cáo hóa học: " Research Article Cooperative Multibeamforming in Ad Hoc Networks" pot

... destination nodes, and the other K-M ones are the unintended destina- tion nodes. 2.1. Cooperative multiple beamforming Cooperative beamforming consists of two stages, local broadcasting and cooperative ... transmission. In particular, in local broadcasting, each source node broadcasts its data- bearing signal to the other ones in the source cluster; then in cooperative transm...

Ngày tải lên: 22/06/2014, 19:20

... each other. In addition, single path flat fading channels are assumed in the prior works. However, in practice, the channels are not single path flat fading, and they may not be independent each ... 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 Procee...

Ngày tải lên: 21/06/2014, 05:20

... Hindawi Publishing Corporation Fixed Point Theory and Applications Volume 2010, Article ID 401684, 12 pages doi:10.1155/2010/401684 Research Article Property P in G-Metric Spaces Renu ... x n : T n x 0 , every orbit is linearly dependent, thus rendering fixed point theorems in such spaces trivial. Unfortunately, it was shown that certain theorems involving Dhage’s D-metric spaces ar...

Ngày tải lên: 21/06/2014, 10:20

... 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 ... 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 explicit...

Ngày tải lên: 22/06/2014, 19:20

... assuming no channel state information at the transmitter, the signals from differ- ent cooperating nodes add incoherently at the receiver and the resulting SINR for reception at node j reads SINR j  A j , ... Information Theory, vol. 50, no. 12, pp. 3062–3080, 2004. [4] M. Qin and R. S. Blum, “Capacity of wireless ad hoc networks with cooperative diversity: a warning on the interaction...

Ngày tải lên: 22/06/2014, 22:20

... assuming no channel state information at the transmitter, the signals from differ- ent cooperating nodes add incoherently at the receiver and the resulting SINR for reception at node j reads SINR j  A j , ... Information Theory, vol. 50, no. 12, pp. 3062–3080, 2004. [4] M. Qin and R. S. Blum, “Capacity of wireless ad hoc networks with cooperative diversity: a warning on the interaction...

Ngày tải lên: 22/06/2014, 22:20

... that of minimizing (7) is in the way that the channel fading statistics, p(g), is utilized. In using (7), the variable to be averaged is P e0 (γ 0 , , γ K | g), which is a highly non- linear function ... evaluation: in (14)and(15), the integrand involves the fusion rule that is a highly nonlinear function of the CSI g, making the integration formidable. The only pos- sible way of finding...

Ngày tải lên: 22/06/2014, 22:20

... ranging direct fire weapons using the acoustic muzzle blast and shock wave,” in Proceedings of the International Conference on Intelligent Sensors, Sensor Networks and Information Pro- cessing ... starting point could, for instance, be the MB estimate x MB . Initial shooting direction could be given by assuming, in a sense, the worst possible case, that the shooter aims at some point clos...

Ngày tải lên: 21/06/2014, 16:20

... example Network Coding (NC)and no coding at all (Non-NC ). 3.1. Overview of Cooperative Coding and Caching 3.1.1. Code words. In C 3 , instead of having full cardinality only, the combined data segments ... facilitating caching management for streaming data. Our coding scheme enables the combination of only part of the original data segments, and we refer to it as Cooperative Coding and...

Ngày tải lên: 21/06/2014, 17:20

... source terminal i. Source terminal i may share its trust vector with other terminals in the network. For instance, terminal i may inform terminal l about behavior of terminal k. Terminal l then ... like to point out that by maintaining belief, source terminals deviate from the assumption (as in existing cooperative protocols) that their partners are always willing to cooperate. Indeed,...

Ngày tải lên: 21/06/2014, 20:20