Báo cáo hóa học: " Research Article Turbo Processing for Joint Channel Estimation, Synchronization, and Decoding in Coded MIMO-OFDM Systems" pdf

... 20, 21, 24]. In this paper, we propose a joint synchronization, channel estimation, and decoding turbo processing scheme for coded MIMO-OFDM systems in the presence of qua- sistatic multipath channels, ... pages doi:10.1155/2009/206524 Research Article Turbo Processing for Joint Channel Estimation, Synchronization, and Decoding in Co ded MIMO...

Ngày tải lên: 21/06/2014, 23:20

... SOSTTC system in an FNS channel outperforms them all. The performance degradation in Figures 6 and 7 for the SOSTTC with ME in an FS fading channel can be attributed to the increase in parallel ... code in space-time domain. 3.2. Super-Orthogonal Block Codes for OFDM. The OFDM technique transforms an FS fading channel into parallel flat fading sub-channels and eliminate...

Ngày tải lên: 21/06/2014, 17:20

... specific situation, such a preprocessing would require channel state information (CSI) in advance and extra computational costs for encoding /decoding; moreover, the performance will be sensitive to inaccuracy of ... In this study, we consider single-path channels and each channel gain h j (t), j = 1, 2, , K, is incorporated into A j .Inthefollowing,we assume the ψ(t) is a rectan...

Ngày tải lên: 21/06/2014, 23:20

... Journal on Information Security Volume 2007, Article ID 35262, 18 pages doi:10.1155/2007/35262 Research Article Multimedia Encryption with Joint Randomized Entropy Coding and Rotation in Partitioned ... estimation in an adaptive QM coder is determined by an internal state machine and changes according to the state and current input. (ii) The second type of parameters has not...

Ngày tải lên: 22/06/2014, 06:20

... il- lustrated in Figure 1. The box “compression before entropy coding” represents all operations before entropy coding, including motion com- pensation, DCT transform, quantization, and so forth. Its 4 ... estimation in an adaptive QM coder is determined by an internal state machine and changes according to the state and current input. (ii) The second type of parameters has nothing...

Ngày tải lên: 22/06/2014, 19:20

... Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2009, Article ID 727034, 9 pages doi:10.1155/2009/727034 Research Article Adaptive Algorithm for Chirp-Rate ... distribution, and reproduction in any medium, provided the original work is properly cited. 1. Introduction Instantaneous frequency (IF) estimation is a challenging topic in the...

Ngày tải lên: 21/06/2014, 19:20

... include lowerbiterrorratesduetolessnoiseaccumulationat the destination, reduced decoding complexity, and lesser latency. We assume that the destination has the channel state information (CSI) for all the channels in the receive mode. Using the CSI, ... stage to forward the signal towards the destination using amplify and forward (AF). Before introducing our JEEMAS strategy and a...

Ngày tải lên: 21/06/2014, 20:20

... collaborative processing and retransmission of the overheard information at thosestations surrounding the source and the destination. By combining different versions of the same information transmitted ... CoopDestinationID field, and forwards the packet immediately, without contending for the channel. (3) COOPFINAL: the packet type used between the helper and the final destination...

Ngày tải lên: 21/06/2014, 20:20

... QAM Channel coding /decoding Turbo coding (R = 1/2, k = 4)/ (FEC) Max-Log-MAP decoding (Iterations =8) Channel interleaving Random interleaving Interpolation in time direction First order linear interpolation Oversampling ... 1954–1958, Beijing, China, September 2003. [6] C. Suh, C. S. Hwang, and H. Choi, “Comparative study of time-domain and frequency-domain channel estimati...

Ngày tải lên: 21/06/2014, 20:20

... n,whereα and δ are as in 3.8 and 3.13. Hindawi Publishing Corporation Journal of Inequalities and Applications Volume 2008, Article ID 385362, 11 pages doi:10.1155/2008/385362 Research Article Exponential ... Article Exponential Inequalities for Positively Associated Random Variables and Applications Guodong Xing, 1 Shanchao Yang, 2 and Ailin Liu 3 1 Department of Ma...

Ngày tải lên: 21/06/2014, 22:20