báo cáo hóa 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 ... power allocation here helps in the comparison between SU -MIMO 1 Improving energy efficiency through multimode transmission in the downlink M...

Ngày tải lên: 20/06/2014, 04:20

... 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 ... 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

... 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 ... the main pa rts of the energy consumption [1,2], improving the energy efficiency of BS is significant. Additionally, multiple-input multiple- outp...

Ngày tải lên: 20/06/2014, 21:20

... 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

... Conference (GreenCom), Online (2011) 13. J Xu, L Qiu, C Yu, Improving energy efficiency through multimode transmission in the downlink MIMO systems, in EURASIP J Wireless Commun and Networking (2011, in press) 14. ... transmitters in the downlink systems. There are a lot of literatures considering the coopera- tive multi-cell downlink systems from a standpoin...

Ngày tải lên: 20/06/2014, 22:20

... only delays the parameters in the waiting space of the initial node: packets are not further delayed in intermediate nodes. Since the aggregation is part of the IDRA architecture, the aggregation ... wireless sensor networks and their integration into the internet, in Proceedings of the First International Conference on Integrated Internet Ad Hoc and Sensor Networks. Int...

Ngày tải lên: 21/06/2014, 01:20

... (practically in the range y 0.1); in an in nite barrier case the binding energy diverges, when y ? 0 for any magnetic strength. At such values of the QWW radius the binding energy of impurity is mainly determined ... the same value of y the growth of binding energy depending on the magnetic field is more rapid for a Fig. 2 The binding energy of the ground state o...

Ngày tải lên: 22/06/2014, 18:20

... ectopic site, the permeability of the BTB of the breast cancer tumor growing in the brain is lower than the BTB of the original tumor in breast tissue, the ortho- topic site[5]. The brain tissue ... imaged every 10 min following the initial 15 minute dynamic scan, for a total of 175 minutes, while the animal was maintained under anesthesia for the duration of the s...

Ngày tải lên: 18/06/2014, 15:20

... regu- lated in circulating erythroid cells. As such, the data sup- port further erythroid-focused investigation of these curious RNA molecules. Conclusion In addition to globin and other protein-encoding ... let-7 in adult erythroid cells. We speculate that let-7 or other differentially expressed miRNA are involved in the hemoglobin switching phenomenon. Alternatively, the incre...

Ngày tải lên: 18/06/2014, 15:20