Báo cáo hóa học: " Research Article Opportunistic Scheduling for OFDM Systems with Fairness Constraints" pdf

... multiuser OFDM systems. We derive optimal opportunistic scheduling policies under three QoS /fairness constraints for multiuser OFDM systems temporal fairness, utilitarian fairness, and minimum-performance ... Networking Volume 2008, Article ID 215939, 12 pages doi:10.1155/2008/215939 Research Article Opportunistic Scheduling for OFDM Systems with Fairness...

Ngày tải lên: 22/06/2014, 19:20

... multiuser OFDM systems. We derive optimal opportunistic scheduling policies under three QoS /fairness constraints for multiuser OFDM systems temporal fairness, utilitarian fairness, and minimum-performance ... Communications and Networking Volume 2008, Article ID 215939, 12 pages doi:10.1155/2008/215939 Research Article Opportunistic Scheduling for OFDM Systems...

Ngày tải lên: 22/06/2014, 06:20

... ergodic spectral efficiency, none of the systems with AS outperforms the FC system with N receive antennas (and thus N RF chains). However, as for the RFC system with only n R antennas (and thus n R RF ... Communications and Networking Volume 2009, Article ID 739828, 11 pages doi:10.1155/2009/739828 Research Article Antenna Selection for MIMO Systems with Closely Spaced An...

Ngày tải lên: 21/06/2014, 22:20

... b  x  X 2.2 for all t ∈ I and x ∈ X. The Volterra operator which is defined by Kxt  t 0 kt, sxsds for x ∈ L 1 R  ,X where kt, s is measurable with respect to both variables. If K transforms ... Corporation Advances in Difference Equations Volume 2011, Article ID 154742, 10 pages doi:10.1155/2011/154742 Research Article On a Nonlinear Integral Equation with Contr...

Ngày tải lên: 21/06/2014, 17:20

... fading with κ = 10 dB versus the number of users K with an OPE receiver for SIR = 5dBandm = 8, 16,32, 64,128. κ = 10, the cases of m = 16 and m = 32 compete for the optimal hop length, and the former ... bound for coded FHSS systems with MAI. Results show that the performance loss due to interference increases as the hop length increases (or in other words as the number of hops...

Ngày tải lên: 21/06/2014, 23:20

... Corporation Advances in Difference Equations Volume 2007, Article ID 67492, 12 pages doi:10.1155/2007/67492 Research Article Asymptotic Expansions for Higher-Order Scalar Difference Equations Ravi P. ... of a higher-order nonlinear difference equation with sufficiently smooth nonlinearity. The proof i s based on the inversion formula for the z-transform and the residue theorem. Copyri...

Ngày tải lên: 22/06/2014, 19:20

...  p + B r −p − B r L s (B r ) (3.15) for any s>p + B r − p − B r . Hindawi Publishing Corporation Boundary Value Problems Volume 2007, Article ID 48348, 20 pages doi:10.1155/2007/48348 Research Article Unbounded ... partial differential equations with nonstandard growth conditions; for example, s ee [2–6]. It has turned out that regularity results for weak solutions of (1.1) d...

Ngày tải lên: 22/06/2014, 22:20

... factor [20] with small Rician factor indicat- ing more scattering. The Rician factor was estimated by the moment-method [21] from the measured MIMO -OFDM channelsforeachOFDMsubcarrierandforeachMIMO subchannel. ... channels as a function of frequency. Channel measurements for a 2 2 MIMO -OFDM system at 3.65 GHz with 20 MHz bandwidth have been performed by Motorola in an indoor laborato...

Ngày tải lên: 22/06/2014, 22:20

... throughput is 190 for ECOMF and 184 for ECOMP with an appropriate optimum threshold value at N  ≈ 80 for ECOMF and ρ th = 0.25 for ECOMP. The optimal values of ρ th and k for ECOMP for each channel condition ... recover the erased packets for users with inadequate instantaneous SNR, ECOMP makes use of RS-code with the same encoding scheme as described in Section 2 .For s...

Ngày tải lên: 21/06/2014, 11:20

... afficinrealsystems.RT traffics such as voice streaming have constant bit rate (CBR) feature. Margin adaptation for OFDMA systems [14] is considered as the most efficient resource allocation scheme for power ... Algorithms. Diverse packet scheduling algorithms were introduced and their performances were evaluated in terms of system throughput and fairness [16–18]. For the best fairness,...

Ngày tải lên: 21/06/2014, 11:20