Báo cáo hóa học: " A novel cross-layer mesh router placement scheme for wireless mesh networks" pptx

... Raphaeli, A new approach to parallel interference cancellation for CDMA, in IEEE GLOBECOM 3, 1452–1457 (1996) 7. D Divsalar, M Simon, D Raphaeli, Improved parallel interference cancellation for ... conjugate and h i is Gaussian random variable with zero mean and variance of N 0 /2. E b is the transmitted bit energy and ˆ a (iter) k is the estimated data of kth user at iter-th iteratio...

Ngày tải lên: 20/06/2014, 22:20

... not available at the transmitter. If the av- erage attenuation of the channel for each cooperative node pair can be estimated, we can use an equal signal-to-noise (SNR) p olicy [7] to allocate ... co- operative nodes receive the data packet, they will encode the data packet by orthogonal STBC, and transmit the data as an individual antenna with transmission power P out jt in the MIMO antenn...

Ngày tải lên: 22/06/2014, 22:20

... synchronous transmission can be accomplished if the relative delays between the relay nodes are much smaller than the symbol duration. This is usually a reasonable assumption for low-rate WSN applications. ... from a significant performance degradation due to erroneous decisions if cen- soring is not applied. Fortunately, with censoring this perfor- mance degradation can be avoided and...

Ngày tải lên: 22/06/2014, 19:20

... IEEE International Conference on Advanced Information Networking and Applications, 465–472 (2010) 16. F Xhafa, C Sanchez, L Barolli, R Miho, An annealing approach to router nodes placement problem in wireless ... 802.16 - Standard for local and metropolitan area networks, Part 16: Air Interface for Broadband Wireless Access Systems (2004) 35. H-Y Wei, S Ganguly, R Izmailov, ZJ Haa...

Ngày tải lên: 20/06/2014, 22:20

... is an increasing demand for rapid, parallel fabrication strategies for nanoholes and nanopillars. Some applications that require repetitive uniform nanoholes and nanopillars over large area are ... Micro- and nanospheres that have highly uniform sizes and could easily produce a hexagonally close packed (HCP) self-assembled monolayer have attracted wide- spread attention for forming la...

Ngày tải lên: 21/06/2014, 22:20

... moving average method (Vlachos 3 The news articles in one day is treated as a batch. et al., 2004) ,we parameterize p 0 and p 1 with the time index for each batch, formally, we have p 0 (t) and ... frequency state q 1 . Each state has its own emission rate (p 0 and p 1 respectively), and there is a probability for changing state. If an interval of high states appears in the optimal st...

Ngày tải lên: 23/03/2014, 14:20

... Conjugate-Cyclic-Autocorrelation Projection-Based Algorithm for Signal Parameter Estimation Valentina De Angelis, 1 Luciano Izzo, 1 Antonio Napolitano, 2 and Mario Tanda 1 1 Dipartimento di Ingegneria Elettronica ... W. A. Gardner, Statistical Spectral Analysis: A Nonprobabilistic Theory, Prentice-Hall, Englewood Cliffs, NJ, USA, 1988. [2] V. De Angelis, L. Izzo, A. Napolitano, and M. Ta...

Ngày tải lên: 22/06/2014, 22:20

... enable transmission interval (ETI), the total delay due to collision resolution, the total delay associated w ith ac- tual data transmission, and the delay caused by the collision of a data packet ... PNC CAP CTAP MCTA1 ··· GTS1 ··· GTSn − 1GTSn Figure 1: 802.15.3 superframe format. (CTA) slots, and CTAs are allocated to DEVs by the PNC. CTAs used for asynchronous and isochronous data str...

Ngày tải lên: 23/06/2014, 00:20

... of wireless sensor networks, in 21st International Conference on Advanced In- formation Networking and Applications Workshops, Niagara Falls, Canada, 21–23 May 2007, pp. 725–730 17. M Esnaashari, ... Aiming at dynamic point coverage, a scheduling algorithm based on learning automata is proposed in [17], the advantage is that less auxiliary messages are needed to be delivered between nodes...

Ngày tải lên: 21/06/2014, 17:20

... + n MAC sublayer Physical layer PPDU Physical Protocol Data Unit Frame Control Sequence Number Addressing Fields Data Payload FCS Frame Check Sequence MHR MAC Header MSDU MAC Service Data Unit MFR MAC ... outperforms both ALG1 and ALG2. Finally, for a dense network (R = 12), ALG3 still performs better than both ALG1 and ALG2. Thus, ALG3 outperforms both ALG1 and ALG2 across the full range...

Ngày tải lên: 21/06/2014, 22:20