Báo cáo hóa học: " Research Article Distributed Space-Time Block Coded Transmission with Imperfect Channel Estimation: Achievable Rate and Power Allocation" pot

... Processing Volume 2008, Article ID 471327, 9 pages doi:10.1155/2008/471327 Research Article Distributed Space-Time Block Coded Transmission with Imperfect Channel Estimation: Achievable Rate and Power Allocation Leila ... investigates the effects of channel estimation error at the receiver on the achievable rate of distributed space-time block coded...

Ngày tải lên: 22/06/2014, 19:20

... underlay and overlay games, with utility functions defined in (14 )and( 15)andwith the potential functions defined in (17 )and( 18), are exact potential games is given in the appendix. 3.2. A Bayesian Potential ... other hand, based on the overlay paradigm, besides selecting the transmission power and the frequency channel, the SUs devote part of their transmission power for rela...

Ngày tải lên: 21/06/2014, 20:20

... (M = 3) with BPSK when N c = 4andN g = 2. same data rate as CP-SC, the data symbol block length and the TS length need to be set to N c and N g ,respectively.The difference between TA-SC and CP-SC ... 16QAM, 64QAM Data symbol block length N c = 64 TS and CP lengths N g =16 Channel Fading type Frequency-selective block Rayleigh Power delay profile L = 2 ∼16 path uniformpowe...

Ngày tải lên: 21/06/2014, 08:20

... 1)),whichagreeswith the result in [7] with limited feedback only. 4.2.2. Achievable Rate. For the ZF system with imperfect CSI, the genie-aided upper bound for the ergodic achievable rate is given ... Based on the analysis of the achievable ergodic rates in this paper, we propose to switch between SU and MU modes and select the one with the higher achievable rate. The...

Ngày tải lên: 21/06/2014, 20:20

... Equations Volume 2011, Article ID 437842, 12 pages doi:10.1155/2011/437842 Research Article µ-Stability of Impulsive Neural Networks with Unbounded Time-Varying Delays and Continuously Distributed Delays Lizi ... delay and the delay kernels h j ,j ∈ Λ, and independent of the range of time-varying delay. Thus, it can be applied to impulsive neural networks with unbounded time...

Ngày tải lên: 21/06/2014, 05:20

... m/s N = 20, λ m = 0.5, with proposed mobility model N = 20, λ m = 0.25, with proposed mobility model N = 20, λ m = 0.5, with bounced random walk N = 20, λ m = 0.25, with bounced random walk Time that ... protocol with widely used bounced random walk mobility model with a step size of l. We mean by bounced random walk that when the mobile nodes hit the boundary under random walk, t...

Ngày tải lên: 21/06/2014, 05:20

... each node, R i with M = 5 Averate rate savings (a) Averate rate savings 3 3.5 4 4.5 5 10 12 14 16 18 20 22 24 26 28 Number of nodes involved, M with R i = 3 (b) Figure 6: Average rate savings achieved ... 1: Block diagram of source localization system. We assume that the channel between each node and fusion node is noiseless and each node sends its quantized (Quantizer, Q i...

Ngày tải lên: 21/06/2014, 08:20

... Journal on Wireless Communications and Networking Volume 2010, Article ID 808797, 14 pages doi:10.1155/2010/808797 Research Article Distributed KDC-Based Random Pairwise Key Establishment in Wireless ... generates a random key K and sends the key to V 1 using their secure link, V 1 sends the key to V 2 using the secure link between V 1 and V 2 , and so on until V receives the...

Ngày tải lên: 21/06/2014, 17:20

... square errors NE LKF with Δ 3 = 1.2 LKF with Δ 2 = 0.8 LKF with Δ 1 = 0.4 NE LKF with Δ 3 = 1.2 LKF with Δ 2 = 0.8 LKF with Δ 1 = 0.4 Figure 3: MSEs comparison between NE-DFRHF and three LRHKFs inside ... square errors NEEQ with Δ 3 = 1.2 EQ with Δ 2 = 0.8 EQ with Δ 1 = 0.4 (b) MSEs after EUI Figure 2: MSEs comparison between NE-DFRHF and three EQ-DFRHFs before and aft...

Ngày tải lên: 21/06/2014, 19:20

... antennas and M is the number of transmit antennas corresponding to the number of BSs and cochannel MTs, respectively. A block of information bits u m from user antenna m is encoded and bit-interleaved ... user performance, and has a loss of less than 1 dB at FER of 10 −2 for ρ i ≤−6dB. To show the behavior of a setup with random path losses, the elements ρ li of the path-loss vect...

Ngày tải lên: 21/06/2014, 22:20