Báo cáo hóa học: " Resource allocation for maximizing outage throughput in OFDMA systems with finite-rate feedback" docx

... RESEARCH Open Access Resource allocation for maximizing outage throughput in OFDMA systems with finite-rate feedback Bo Wu 1 , Lin Bai 2 , Chen Chen 1* and Jinho Choi 3 Abstract Previous ... article as: Wu et al.: Resource allocation for maximizing outage throughput in OFDMA systems with finite-rate feedback. EURASIP Journal on Wireless Communicatio...

Ngày tải lên: 21/06/2014, 01:20

... nondominant components can produce the masking effect, inhibiting the in uence of dominant components, leading thus to the false decision. These facts are taken into account in our CBIR system with ... coordinates for dominant colors in HSV (hue- saturation-value) space, 32 coordinates for dominant colors in YCbCr (luminance Y and two chrominance components: Cb = Y − B, Cr = Y − R...

Ngày tải lên: 22/06/2014, 20:20

... Conference on Communication Systems (ICCS) 2010:346–350. 14. Amah A, Klein A: Non-regenerative multi-way re- laying with linear beamforming. In IEEE Interna- tional Symposium on Indoor and Mobile Radio ... symbol. For an equal time and rate allocation, network coding gains more than 2.5 dB for R = 2.0 bits per symbol. The systems with the optimal time and rate al- location perf...

Ngày tải lên: 21/06/2014, 17:20

... largest gain due to network coding is obtained for N = 2 terminals and the gain decreases with increasing N . In further work, efficient code design for asym- metric multi-way relay systems could ... non- regenerative relaying with beamforming. The same authors considered similar scenarios with regenera- tive relaying in [16] and multi-group multi-way relay- ing in [17,18]. Co...

Ngày tải lên: 21/06/2014, 23:20

... by using the linear programming technique and the Hungarian method. In [4], the authors formulated a combinatorial problem to jointly optimize the subcarrier and power allocation. In their formulation ... high- performance physical layer in emerging cellular networks. OFDMA is based on OFDM and inherits immunity to inter- symbol interference and frequency selective fading. Recently,...

Ngày tải lên: 22/06/2014, 22:20

... largest gain due to network coding is obtained for N = 2 terminals and the gain decreases with increasing N . In further work, efficient code design for asym- metric multi-way relay systems could ... Conference on Communication Systems (ICCS) 2010:346–350. 14. Amah A, Klein A: Non-regenerative multi-way re- laying with linear beamforming. In IEEE Interna- tional Symposium on Ind...

Ngày tải lên: 20/06/2014, 20:20

... Seong-Lyun, Joint subcarrier and power allocation in uplink OFDMA systems. IEEE Commun Lett. 6(9), 526–528 (2005) 2. D Zhang, Y Wang, J Lu, QoS aware resource allocation in cooperative OFDMA systems with ... vector ¯ c min denotes the minimum rate of each user. The optimizing framework is therefore formulated as an integer programming problem. By introducing a 1 × m dual ve...

Ngày tải lên: 20/06/2014, 22:20

... considered in this study. In Section 3, we introduce the approaches to analyze video 3 introduced in [22] for the waiting time of a D/G/1 queue, whose inter-arrival time is deterministic and service ... rate. As shown in Fig. 1, a two-hop wireless channel is applied for the moving network in a vehicular environment. In case of a handoff between neighboring cells, the ongoing tr...

Ngày tải lên: 21/06/2014, 17:20

... provide two-weighted norm inequalities for Calderón-Zygmund operators that are sharp for the Hilbert transform and for the Riesz transforms. Ding and Lin [23] consider the fractional integral operator ... first and the last integrals are independent of ε. Letting ε ↘ 0, therefore, the proof is complete after accepting Lemma 4.3. Lemma 4.2. Let a v be defined in (4.14). Then, for eve...

Ngày tải lên: 20/06/2014, 22:20

... D ( i ) ∗ min ]  1 .Accordingto(14), D ( i ) min is at least D ( i ) ∗ min with probability p D ∗ min =1− Pr[D min < D ( i ) ∗ min ] . Substituting in (14), we get D (i)∗ min =  − ln(p D ∗ min ) πα i ρ i (15) Note ... the RAP-MAC goodput gain decreases before increasing again for the more stringent outage constraint of b equals to 1%. As we mentioned earlier, the superior goodput...

Ngày tải lên: 20/06/2014, 22:20