Báo cáo hóa học: "Approaching the MIMO Capacity with a Low-Rate Feedback Channel in V-BLAST" docx

... per-antenna rate adaptation using a low-rate feedback channel. Using a low-rate feedback channel, [13] introduced rate adaptation at each antenna in V-BLAST to overcome this problem. We extend their approach ... multidimensional cod- ing [1]. Hence, the same capacity can be achieved using scalar coding, but at the expense of rate adaptation using a low- rate feedback...

Ngày tải lên: 23/06/2014, 01:20

... and AMM analyzed the data and interpreted the results. RB was involved in the creation of figures. JS, MW, TG, ZS, BB and AMM wrote the manuscript. All authors have read and approved the final ... 71:138-149. 43. Akhondzadeh S, Tabatabaee M, Amini H, Ahmadi Abhari SA, Abbasi SH, Behnam B: Celecoxib as adjunctive therapy in schizophrenia: a double- blind, randomized and placebo...

Ngày tải lên: 19/06/2014, 22:20

... purposes) veterinarians when the data was analysed as a group. This was somewhat of an interesting finding because quality of leadership and collaboration with co-workers has been previously demonstrated as ... appears that stress remains fairly common among Australian veterinarians, and one that occupies several distinct areas within their professional life. From a methodological per...

Ngày tải lên: 20/06/2014, 00:20

... expanding global HIV/AIDS care initiatives. Authors and Disclosures Mark A. Wainberg, PhD, has disclosed that he has received grants for clinical research from GlaxoSmithKline and Bristol-Myers ... Squibb. Joep M. A. Lange, MD, has disclosed that he has received grants for clinical research and/or honoraria for educa- tional and/or advisory activities from Bristol-Myers Squibb, Boehringer I...

Ngày tải lên: 20/06/2014, 08:20

... Rather, NA: A refinement of a theorem of Paul Turan concerning polynomials. Math Ineq Appl. 1, 231–238 (1998) 7. Jain, VK: Generalization of an inequality involving maximum moduli of a polynomial and ... possible and equality attains for p(z)=(z -1) n with a ≥ 1. As an extension to the inequality (1.7), Jain [7] proved that if p(z) has all zeros in |z| ≤ 1, then for all a 1 ,...

Ngày tải lên: 20/06/2014, 22:20

... domain. By using the average value of the pinned field as a threshold value, the pinned field is transformed into a binary feature image. Then, the binary feature image i s combined with a scrambled ... embedded domain of watermarks, digi- tal watermarking techniques can be classified into two categories: the spatial and frequency domains. Embed- ding watermarks in the s...

Ngày tải lên: 21/06/2014, 00:20

... of the instantaneous channel realizations. Ergodic capacity is used to characterize the transmission rate of the channel. We assume the channel has unit bandwidth. We further assume an average ... allocation, where the MR only performs a rough resource allocation with limited information (the average channel gain of all outgoing links at MC or the statistical chan...

Ngày tải lên: 21/06/2014, 02:20

... keeping maximum spatial multiplexing gain. In MIMO systems, unlike in single-antenna systems, the multiple transmitters interfere with each other at each receive antenna resulting in IAI. In the ... the IA I. To summarize, the contributions of this paper are the following: we demonstrate the practical gains that may be achieved in a single carrier MIMO system by...

Ngày tải lên: 21/06/2014, 05:20

... on the channel as well as the spatial structure of the interference, and methods for feeding back such information are proposed and analyzed. In the second half of the paper, a partial feedback ... median range of users are available, only insignificant performance degradation is observed with respect to the optimum in simulations with an ideal channel model or base...

Ngày tải lên: 21/06/2014, 20:20

... degraded broadcast channels. As mentioned earlier, since the class of parallel mul- tireceiver wiretap channels with a less noisiness order in each subchannel contains the class of parallel degraded multireceiver ... model, we again have a parallel multireceiver wiretap channel with two subchannels, two users, and one eavesdropper, and the degradation order in each subchan...

Ngày tải lên: 21/06/2014, 22:20