On space time trellis codes over rapid fading channels with channel estimation

... MIMO channel estimation 29 Chapter Performance Analysis of STTC over i.i.d Channels with Channel Estimation In this chapter, we focus on the performance analysis of STTC over rapid fading channels ... of STTC over i.i.d Channels with Channel Estimation 57 4.1 Introduction 57 4.2 Code Design with Channel Estimation 59 4.2.1 Code Construction ... effect...

Ngày tải lên: 14/09/2015, 17:55

... Hong, Performance analysis of space-time block codes in time-varying Rayleigh fading channels, ” in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP ... compensation in MIMO channels We have considered the effect of imperfect carrier offset knowledge over the estimates of the channel gains and resulting probability of...

Ngày tải lên: 22/06/2014, 19:20

... MIMO Systems and Space- Time Coding 1.1.1 Background of MIMO Systems 1.1.2 Introduction to Space- Time Coding Space- Time Block Codes over General Fading ... DESIGN AND PERFORMANCE ANALYSIS OF MIMO SPACE- TIME BLOCK CODING SYSTEMS OVER GENERAL FADING CHANNELS HE JUN (B Eng., Zhejiang University, P.R.China) A THESIS SUBMITTED FOR...

Ngày tải lên: 14/09/2015, 14:05

... (dB) 2 -PAM 4 -PAM 20 25 0.5 100 30 101 102 103 Number of user, SNR = 15 dB 2PPM 4PPM 8 -PAM 16 -PAM 8PPM 1 6PPM Figure 8: Capacity of a multiple access UWB system with PAM over a multipath fading ... 1 6PPM 3 2PPM 2PPM 4PPM 8PPM Figure 5: Relationship between distance and channel capacity of a UWB system with PPM over a multipath fading channel, L...

Ngày tải lên: 21/06/2014, 22:20

... ensure that a given Alamouti block ij S4t appears on the same group of transmitter antennas (i.e., in the same column of the matrix), such that they can provide similar performance as the codes ... The major contributions of the method are that the transmission signals can maintain constant amplitude, and avoid signal constellation expansion They also have a linear signal detector wi...

Ngày tải lên: 22/06/2014, 19:20

... can be used to obtain simple-toevaluate approximate rational expressions for the MGF of the Weibull RV based on the knowledge of its moments We then use these expressions to evaluate the performance ... Section 2, we give a brief overview of the Pad´ approximation teche nique In Section 3, we apply this technique to the problem at hand The performance of di...

Ngày tải lên: 22/06/2014, 22:20

... H (15) 2.3 Modulation scheme The diagonalization of underspread systems by the WeylHeisenberg bases naturally suggests using an OFDM-like modulation scheme for communication over underspread ... modulation (BICM) [6], where bitwise interleaving at the encoder input is used to improve the performance of coded modulation on fading channels In this paper, we propose a multil...

Ngày tải lên: 22/06/2014, 23:20

... application of (39) and (40), however, does not yield a tight bound of the bit error performance for TDMSDD and FD-MSDD over time- and frequency-selective Rayleigh fading channels As shown in [6] for ... Performance Analysis of MSDD for OFDM over Fading Channels (AWGN) channel In order to reduce this gap between the coherent detection and convention...

Ngày tải lên: 23/06/2014, 01:20

... 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

... Signal-to-noise ratio STBC Space time block code /codes STC Space- time code /codes STTC Space- time trellis code /codes USTM Unitary Space Time Modulation xxi Chapter Introduction With the spectacular growth ... [12], space- time concatenated codes (which include space- time turbo codes, serial concatenated codes, etc) and the layered spacetime (LST) codes...

Ngày tải lên: 16/09/2015, 08:30

... doi:10.1186/1687-1499-2011-144 Cite this article as: Deng and Hwang: Novel low-PAPR parallel FSOK transceiver design for MC-CDMA system over multipath fading channels EURASIP Journal on Wireless Communications ... performance of the proposed parallel FSOK MC-CDMA system The environment considered is the uplink of a simplified single cell system over multipat...

Ngày tải lên: 20/06/2014, 22:20

... detection of OSTBCs for the case of spatially colored noise given in [11], the received SNR is obtained as follows Theorem Using the exact relay gain, the received SNR of two-hop AF OSTBC transmission ... “End-to-end BER analysis for dual-hop OSTBC transmissions over Rayleigh fading channels,” IEEE Transactions on Communications, vol 56, no 3, pp 347–351, 2008 [9] R H Y...

Ngày tải lên: 21/06/2014, 11:20

... Error performance for the best- relay selection scheme over Rayleigh fading channels Figure 3: Outage performance for path the best- relay selection scheme over Rayleigh fading channels of the ... 25 30 Regular cooperative networks The best- relay selection scheme Figure 4: Comparison between the regular cooperative diversity and the best- relay sele...

Ngày tải lên: 21/06/2014, 22:20

... (33) over the fading amplitudes and the number of interfering users, the PEP of coded FHSS systems over Rician fading channels with imperfect CSI is given by (24) with Λ(k) being replaced with ... performance of a coded FHSS system over Nakagami fading with perfect CSI for different number of users and hop lengths of m = and m = 64 Comparing the sets of...

Ngày tải lên: 21/06/2014, 23:20

... Then, (62) is easily obtained using the aforementioned formulas for the minimum bit energy and the wideband slope Similarly, we note for the perfect side information case that (65) Note that the ... pure on/off keying Further, note that (I0 (2η|h|2 ) − 1)/η2 > |h|4 for η > Therefore, when the fading is perfectly known, the strategy of fixing the peak power and letting ν ↓ results in...

Ngày tải lên: 23/06/2014, 00:20