Space time processing for MIMO communications p2

... facilitate performance assessment of potential space- time coding approaches in realistic propagation environments There are a variety of different approaches used for modeling the MIMO wireless ... RS is S Rmn,pq = Rm−p,n−q (1.30) For example, shift invariance is valid for the case of far-field scattering for linear antenna arrays with identical, uniformly spaced elements Compute...

Ngày tải lên: 07/12/2015, 01:12

... 1999 Space-time processing and equalization for wireless communications Uppsala, 318pp ISBN 91-506-1350-2 In this thesis several aspects of space-time processing and equalization for wireless communications ... and Systems SPACE-TIME PROCESSING AND EQUALIZATION FOR WIRELESS COMMUNICATIONS Erik Lindskog UPPSALA UNIVERSITY 1999 Dissertation for the degree of Doct...

Ngày tải lên: 26/10/2014, 14:30

... this thesis, space- time coding schemes for multiuser and single user systems are discussed Based on the performance analysis, the code design criteria for multiuser composite fading systems are ... outperform the existing space- time codes (STCs) The code design for generally correlated multiuser fading systems is discussed where three fading cases are investigated:...

Ngày tải lên: 14/09/2015, 12:11

... by 12 receive channels, and simultaneously generating 12 transmit channels from baseband input These data chains included MIMO and space-time block-coding algorithms 2.2 Signal processing At the ... modular and expandable architectural format shown in Figure for a 4-channel variant, and shown in full in Figure with specification shown in Table This system is capable of processin...

Ngày tải lên: 22/06/2014, 23:20

... Center for Telecommunications and Information Systems Laboratory, Stanford University, Stanford, CA, June 1994 [2] Second workshop on smart antennas in wireless mobile communications, Center for ... Telecommunications and Information Systems Laboratory, Stanford University, Stanford, CA, July 20-21, 1995 [3] Third workshop on smart antennas in wireless mobile communications, Center...

Ngày tải lên: 16/12/2013, 04:15

... vectors of the sensors 3.3 Performance analysis for GLRT decision rule For the optimum ML decision rule, a closed-form performance analysis does not seem to be feasible However, fortunately such ... performance as the related STBC C for colocated antennas if all K > N sensors transmit The censored DSTBC with noisy sensor decisions approaches the performance of the DSTBC with error-f...

Ngày tải lên: 22/06/2014, 19:20

... transmit antenna to the receive antenna is formed by a pulse-shaping transmit filter (e.g., a root-raised cosine pulse [3]), a multipath fading channel with P separable paths, an ideal lowpass ... low-complexity decoding scheme can be seen as a practical version of this asymptotically optimal scheme and differs in two key aspects that make it practical: (1) it uses a very shor...

Ngày tải lên: 23/06/2014, 00:20

... definition of X H (Ai (s)) from (16); and in (17e) the fact that Tr(·) is a linear operation 3.2 Construction of a class of linear quasi-orthogonal codes for any M We construct a class of quasi-orthogonal ... of quasi-orthogonal codes for achieving higher data rates [21, 22, 23, 24] The quasi-orthogonal codes were given for transmit antennas with rate 1, a...

Ngày tải lên: 23/06/2014, 01:20

... Space-Time Adaptive Processing for Airborne Surveillance Radar 70. 1 70. 2 70. 3 70. 4 70. 5 Hong Wang Syracuse University Main Receive Aperture and Analog Beamforming Data to be Processed The Processing ... and Selection 70. 8 Space or Space-Range Adaptive Pre-Suppression of Jammers 70. 9 A STAP Example with a Revisit to Analog Beamforming 70. 10 Summary References...

Ngày tải lên: 16/12/2013, 04:15

... an open-loop MIMO OFDM-CDMA scheme using space-timefrequency spreading (STFS), in the presence of frequency-selective Rayleigh-fading channel The BER and BLER performance of the OFDM-CDMA system ... scheduling In addition, it offers better diversity/multiplexing trade-off The performance of MIMO OFDM–CDMA scheme using STFdomain spreading is investigated with zero-forcing...

Ngày tải lên: 18/06/2014, 22:20

... N c , the OFDM-CDMA 60 Proposed OFDM-CDMA 2D OFDM-CDMA Number of Users 50 40 30 20 10 0 10 12 14 16 SNR dB Figure 10 System throughput comparison for OFDM-CDMA system with 4Tx, 4Rx of the proposed ... scheduling In addition, it offers better diversity/multiplexing trade-off The performance of MIMO OFDM-CDMA scheme using STF-domain spreading is investigated with zero-fo...

Ngày tải lên: 20/06/2014, 21:20

... material on Space-Time Channel Modeling for Wireless Communications Finally, we would like to thank the Editorial Office of EURASIP Journal on Advances in Signal Processing and the Editor-in-Chief for ... is by P Almers et al It is an up-to-date survey of radio propagation and channel models used to emulate wireless channels for MIMO systems A distinction is drawn between two...

Ngày tải lên: 21/06/2014, 22:20

... real orthogonal group codes for UWB signals based on Hadamard transform and rotation matrices, which also admit more general transmit antenna settings For n = 2m , with m an integer, a Hadamard ... suitable for UWB signals and can work at any transmission rate Based on the performance analysis in a multipath fading channel, we demonstrate that USTC -UWB can achieve superior...

Ngày tải lên: 21/06/2014, 22:20