Báo cáo hóa học: " Research Article Power-Efficient Relay Selection in Cooperative Networks Using Decentralized Distributed Space-Time Block Coding" pptx

... Relay Selection in Cooperative Networks Using Decentralized Distributed Space-Time Block Coding Lu Zhang and Leonard J. Cimini Jr. Department of Electrical and Computer Engineering, University ... combine this information distribution into the process of forming and maintaining relay clusters (i.e., node sets defined in this paper). Besides the destination- initiated po...

Ngày tải lên: 22/06/2014, 19:20

... 87.71 standard EM and EM using different inference engines are shown in Figure 12. As shown in Figure 12, in this sample run, the learning curves of EM with exact inference and EM with appr.II inference converge ... and R. Stiefelhagen, “Person tracking in camera networks using graph-based Bayesian inference,” in Proceedings of the 3rd ACM/IEEE Interna- tional Conference on Di...

Ngày tải lên: 21/06/2014, 05:20

... explaining why security is extremely challenging in routing and multicasting. In prac- tice, establishing a trusted entity referred to as a certification authority (CA) by using a single node in ... P. Ning, “TinyECC: a configurable library for elliptic curve cryptography in wireless sensor networks, ” in Proceedings of the International Conference on Information Processing in Se...

Ngày tải lên: 21/06/2014, 11:20

... backbone network connecting asso- ciated BSs is delay free and error free. The downlink chan- nel state information can be acquired by estimating uplink channel by using uplink-downlink channel reciprocity, ... explained in the previous section, most of the fi- nite rate feedback strategies in MIMO systems are designed for the single user case, focusing on the selection and con- struct...

Ngày tải lên: 22/06/2014, 06:20

... Kranakis, “Detecting rogue devices in bluetooth networks using radio frequency fingerprinting,” in Proceedings of the 3rd IASTED International Conference on Communications and Computer Networks (CCN ... radio frequency fingerprinting using signal phase,” in Proceedings of the Secure Mobile Ad-hoc Networks and Sensors Workshop, Held in Conjunction with the International Indus-...

Ngày tải lên: 21/06/2014, 22:20

... enhancing collaborative learn- ing using pervasive computing technology,” in Proceedings of the 6th WFEO World Congress on Engineering Education and the 2nd ASEE International Colloquium on Eng ineering ... distributed algorithm for managing multi-target identities in wireless ad-hoc sensor networks, ” in Proceedings of the 2nd International Workshop on Information Processing in...

Ngày tải lên: 22/06/2014, 22:20

... Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2007, Article ID 86484, 19 pages doi:10.1155/2007/86484 Research Article Underdetermined Blind Source ... and blind source separation. Scott Rickard received the S.B. degree in mathematics in 1992, the S.B. degree in computer science and engineering in 1993, and the S.M. degree in electric...

Ngày tải lên: 22/06/2014, 23:20

... the random delay line modulation, in order to avoid unwanted filtering of the signal. We, therefore, use low-order Lagrange interpolation instead of the linear interpolation originally suggested ... change in sampling rate, it is best to downsample to a rate which is an integer division of the main sampling rate, rather than downsampling to f C .An f C ofabove5kHzisrarelyseeninrealspringre...

Ngày tải lên: 21/06/2014, 05:20

... these lead to ill-conditioning in (45). N p shows that as the number of training symbols is increased, we also have additional tone pairs that can be included in (45), leading to an improved estimation. ... guarantee the invertibility S Tr −1 tot [l] by generating training symbols such that S ∗(2) [l m ] =−S (1) [l]. A longer training sequence will provide improved estimates due to a bett...

Ngày tải lên: 21/06/2014, 08:20

... described in Section 3.6. Once again, the reduced scheduling gain (through more QoS constraints) is considered in the throughput mapping, rather than in the scheduling proba- bilities. 3.8. Initialization ... of the remaining users u. If yes, the worst remaining user gets its maximum number of PRBs M max,u , and we assign the remaining budget in the next iteration. Otherwise the remai...

Ngày tải lên: 21/06/2014, 11:20