Interleaved frequency division multiple access with multiple antennas and block spreading for mobile broadband communications

... (GMSK) and quaternary phase shift keying (QPSK) Sophisticated multiple access technology like frequency division multiple access (FDMA), time division multiple access (TDMA) and code division multiple ... BS Block Spreading CDD Cyclic Delay Diversity CDMA Code Division Multiple Access DFT Discrete Fourier Transform FDE Frequency Domain Equalizer FDMA Fre...

Ngày tải lên: 08/09/2015, 18:24

... choosing OFDMA such as multipath handling capability, scalability of operation in different bandwidths, the ability to handle different data rates, and the ability to easily combine with multiple ... antenna techniques Nhóm - The focus of this article is on the comparative use of OFDMA in LTE and WiMAX systems USE OF OFDMA IN WIMAX AND LTE Nhóm FRAME STRUCTURE USE OF OF...

Ngày tải lên: 24/07/2015, 22:26

... rộng OFDMA, LTE tiến bước xa thực bước đồng h a ban đầu không phụ thuộc băng thông Evolution of WiMax and LTE Như đề cập trước đó, WiMax LTE ứng viên cao th a mãn yêu cầu ITU IMT-Advanced cho ... đóng vai trò quan trọng l a chọn hệ thông wireless 4G nhà khai thác mạng Như đề cập trước đó, hầu hết nhà khai thác mạng ưu thích LTE WiMAX Các triển khai WiMAX nay, Sprint/Clear...

Ngày tải lên: 24/07/2015, 22:27

... Challenges 1.3 Inter- Carrier Interference Suppression in OFDMA Uplink 1.4 Outline 12 Chapter Inter- Carrier Interference in OFDMA System Uplink 13 2.1 Frequency Asynchronism ... division multiple access QPSK quaternary phase shift keying FFT fast Fourier transform SDMA space division multiple access IBI inter- block interference SB subspace ICI inter-...

Ngày tải lên: 14/09/2015, 14:03

... with interleaved subcarrier allocation, as described in [13], also denoted as Interleaved Frequency Division Multiple Access (IFDMA) in the original paper [14] or Single-Carrier Frequency Division ... equidistantly frequency- separated blocks, each consisting of a few subcarriers, are allocated to each user A Discrete Fourier Transform (DFT) precoding step is performed on each Or...

Ngày tải lên: 21/06/2014, 22:20

... envisioned [11] In particular, we show that there is a strong duality between MIMO systems with colocated antennas (and spatially correlated links) and MIMO systems with distributed antennas (and ... the system and correlation model used throughout this paper are introduced in Section Then, the duality between MIMO systems with distributed antenn...

Ngày tải lên: 22/06/2014, 19:20

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Ngày tải lên: 25/12/2013, 11:08

... throughput For these high channel attenuations, the optimal frequency spreading factor is around 64 Figure 10 gives results with both time and frequency spreadings, that is, with 2D spreading ... case Figures and give results with time spreading and L f = 1, and with frequency spreading and Lt = 1, respectively In these figures only 1D spreading is then performed J.-Y Ba...

Ngày tải lên: 22/06/2014, 19:20

... exhibits a maximum at thereafter Hypothetical data set a heritability value of about 0.81 and decreases rapidly by Gianola and Foulley Table II shows the maximum a posteriori estimates of the parameters ... use of an animal model is currently the state of the art for genetic evaluation of breeding animals Basically, all the practical and theoretical reasons in...

Ngày tải lên: 09/08/2014, 18:22

... paroxysmal myopathy, and paranoiac thoughts of rape and sexual intimidation Her physical examination revealed pronounced facial acne and hirsutism, oily skin, moon face, buffalo hump, and classical Cushing’s ... Endocrinology, Diabetes and Metabolism, Rambam Health Campus and Rappaport Faculty of Medicine, Technion, Haifa, Israel Department of Pathology, G Gennimatas Athens Genera...

Ngày tải lên: 10/08/2014, 23:20

... readability of the manual, Dr Alan Montgomery for help on the statistical aspects of this study, Dr Ali Heawood and Dr Lesley Wye for their qualitative advice, Alana Donaldson and Pei Tse our administrators ... project, analysed the quantitative data and jointly assisted in the interpretation of the quantitative and qualitative data and revised the article All authors read and...

Ngày tải lên: 11/08/2014, 15:22

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Ngày tải lên: 13/08/2014, 03:20

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Ngày tải lên: 10/09/2015, 15:53

... SCHOTTKY SOURCE/ DRAIN TRANSISTOR INTEGRATED WITH HIGH- K AND METAL GATE FOR SUB- TENTH NM TECHNOLOGY LI RUI (B Sc., Univ of Science and Technology of China, CHINA) A THESIS SUBMITTED FOR THE ... integration of germanide Schottky source/ drain Ge channel MOSFET with high- k gate dielectric and metal gate for sub- tenth nm technology...

Ngày tải lên: 14/09/2015, 14:04

... International Union of Radio Science (URSI ’05), New Delhi, India, October 2005 [12] H Schoeneich and P A Hoeher, “Semi-blind pilot-layer aided channel estimation with emphasis on interleave-division ... (1) training-based channel estimation (tb), (2) semiblind channel estimation (sb), and (3) blind channel estimation For tb, channel estimation is only ba...

Ngày tải lên: 22/06/2014, 23:20