Báo cáo hóa học: " Research Article Downlink Coexistence Performance Assessment and Techniques for WiMAX Services from High Altitude Platform and Terrestrial Deployments" pot

... pages doi:10.1155/2008/291450 Research Article Downlink Coexistence Performance Assessment and Techniques for WiMAX Services from High Altitude Platform and Terrestrial Deployments Z. Yang, 1 A. Mohammed, 1 T. Hult, 1 and ... Arnon We investigate the performance and coexistence techniques for worldwide interoperability for microwave access (WiMA...

Ngày tải lên: 21/06/2014, 23:20

... Watts for a 64 kbps service and to 13.4 Watts for a 128 kbps service. These high sums of power underline the need for using this technique. 7.2. Usage of Longer TTI and Space Diversity. Fortunately, some ... 2009, Article ID 785927, 15 pages doi:10.1155/2009/785927 Research Article Evaluation of Different Power Saving Techniques for MBMS Services Antonios Alexiou, 1, 2...

Ngày tải lên: 21/06/2014, 22:20

... t<∞}, then Ttx n  x n for all n and for all t>0. Hence 1/t n   t n 0 Tux n du  x n for all n and z n  x n then, 4.1 reduces to 4.11. 12 Fixed Point Theory and Applications {t ni },i ... first show that C n1 is closed and convex for all n ∈ N ∪{0}.FromtheLemma 2.5,it is observed that C n1 is closed and convex for each n ∈ N ∪{0}. Fixed Point Theory and...

Ngày tải lên: 21/06/2014, 11:20

... Face and Gesture Recognition, 2000. [11] M H. Yang and N. Ahuja, “Gaussian mixture model for humanskincoloranditsapplicationsinimageandvideo databases,” in Conference on Storage and Retrieval for ... Nevertheless, performance for UdB was worse than for CdB. It can be seen that under controlled acquisition conditions the results obtained for the three color spaces showed the...

Ngày tải lên: 21/06/2014, 20:20

... of the speech production system for male and female speakers and the higher accuracy for speech emotion recognition, speaker indexing, speaker recognition, and so forth, offered by the gender-dependent models ... and the findings of objective analysis is generally sought for [19, 20]. Several techniques for the detection and classification of voice pathologies by means of aco...

Ngày tải lên: 21/06/2014, 20:20

... system-level performance. The parameter value ν = 0and > 0 correspond to narrowband scenarios and wideband scenario, respectively. 6 EURASIP Journal on Wireless Communications and Networking No ... positive and, therefore, one obtains that q  max ≤ ε  1+ XPD ( d ) θ P 0 P  d d 0  α  = q ⊥ max , (20) where the right-hand side expression for q ⊥ max derives directly from (18)....

Ngày tải lên: 21/06/2014, 17:20

... derived in closed-form and compared with an upper bound. Performance is also evaluated in asymptotic regimes of interest (high backhaul capacity and extreme signal-to-noise ratio, SNR) and further ... transmitters/ receivers, and so forth, (see, e.g., [4–6]). While the former modelling provides basic analytical and theoretical insight into the network performance and optimal...

Ngày tải lên: 21/06/2014, 19:20

... forwarding traffic. We also refer to the transmission on the regular FDD bands as in-band forwarding, and the transmission on an additional unlicensed band as out-of- band forwarding. In-band forwarding ... architecture for a network utilizing the out-of-band transmission for the forwarding traffic along with TDS for the access traffic for the joint optimization of the degree of the multi...

Ngày tải lên: 21/06/2014, 22:20

... Journal on Wireless Communications and Networking Volume 2009, Article ID 894726, 11 pages doi:10.1155/2009/894726 Research Article Downlink Assisted Uplink Zero Forcing for TDD Multiuser MIMO Systems Petri ... pilot Demodulation and beam allocation pilot Data Data Data ··· (b) Figure 3: Simplified TDD frame and pilot structure needed for (a) UL beamforming, (b) UL/DL beamfor...

Ngày tải lên: 21/06/2014, 22:20

... with random sig- nature for uplink and downlink; uniform terminal distribution. Figures 6, 7, 8 ,and9 show uplink and downlink sector boundaries for uniform and nonuniform user distributions, respectively. ... the optimum sectorization for uplink and downlink with random signa- tures and single path, for uniform and nonuniform user dis- tributions over the cell. Table...

Ngày tải lên: 22/06/2014, 06:20