Báo cáo sinh học: "Improving energy efficiency through multimode transmission in the downlink MIMO systems" docx

... and 3GPP-LTE. Therefore, we will focus on the maximizing energy efficiency problem in the downlink MIMO systems in this article. Previous works mainly focused on maximizing energy efficiency in the single-input ... single-output (SISO) systems [3–7] and point to point single user (SU) MIMO systems [8–10]. In the uplink TDMA SISO channels, the optimal transmission r...

Ngày tải lên: 18/06/2014, 22:20

... and 3GPP-LTE. Therefore, we will focus on the maximizing energy efficiency problem in the downlink MIMO systems in this article. Previous works mainly focused on maximizing energy efficiency in the single-input ... switching in [15–18]. Inter-user interference is small when the moving speed is low, so there is higher multiplexing gain of MU -MIMO benefits. When the mov...

Ngày tải lên: 20/06/2014, 04:20

... 3GPP-LTE. Therefore, we will focus on the maximizing energy efficiency problem in t he down- link MIMO systems in this article. Previous works mainly focused on maxi mizing energy efficiency in the single-input ... increase the inter-us er interference, in which the multiplexing gain makes transmit power saving, but inter-user interference induces transmit power wast...

Ngày tải lên: 20/06/2014, 21:20

... transmitters in the downlink systems. There are a lot of literatures considering the coopera- tive multi-cell downlink systems from a standpoint of spectral efficiency (SE). As combating the inter-cell interference ... Conference (GreenCom), Online (2011) 13. J Xu, L Qiu, C Yu, Improving energy efficiency through multimode transmission in the downlink MIMO syst...

Ngày tải lên: 20/06/2014, 22:20

... visits in inter- vention zones. One of the most promising aspects of formative supervi- sion is the participation of the community in evaluating and improving service quality. Through their involvement in ... high. The decline in prenatal competence that occurred in Thiès may be explained by a deficiency in the prenatal care sec- tion of the checklist used during th...

Ngày tải lên: 18/06/2014, 17:20

... analyzed the data and all three authors interpreted the data, wrote the manuscript, and approved the final version. Competing interests The authors declare that they have no competing interests. Received: ... receiving retraining had been involved in what might be descr ibed as formal training for reentry; seven had been in a reentry program, and five were in mini- residencies...

Ngày tải lên: 18/06/2014, 17:20

... cool on arrival, the small amount of tissue from the single infected shrew had thawed in tran- sit, resulting in a low RNA yield, which limited the options in cDNA synthesis. Also, the divergent ... (49.3% at the nucleotide and 44.2% at the amino acid level). As in other soricid-borne hantaviruses discovered to date, the hypothetical NSs opening reading frame, typically...

Ngày tải lên: 18/06/2014, 18:20

... provide the inverse transform from the time-frequency domain. In the sequel, the general concept of the time-varying filtering is presented. For a given signal x, the pseudoform of time-varying filtering, ... Advances in Signal Processing watermark according to these components. The basic idea of this approach has been introduced in [12]. The time-varying filtering is also...

Ngày tải lên: 21/06/2014, 22:20

... any further exploration of a path relatively early in the search without losing the MLP, if the in uence of unexplored branch metrics on the rank order of the path metrics are insignificant. The ... algorithm based on the ITS scheme. By reconfiguring the tree structure according to the symbol reliability infor- mation, the new algorithm can further decrease the number o...

Ngày tải lên: 22/06/2014, 23:20

... shows that more information is required to assist in improving the evidence base in this field, therefore increasing the understanding of how the different governance dimensions influence HRH policy development ... Furthermore, some of the most qualified NGOs decided not to take on the outsourced role in the interest of retaining their autonomy, and other NGOs with no or lit...

Ngày tải lên: 18/06/2014, 17:20