Báo cáo hóa học: "Frequency-Shift Zero-Forcing Time-Varying Equalization for Doubly Selective SIMO Channels" doc

... Time-varying FIR equalization for doubly selective channels,” IEEE Transactions on Wireless Communications, vol. 4, no. 1, pp. 202–214, 2005. [7] N. Benvenuto and G. Cherubini, Algorithms for ... on the received signal. In order to compensate for the distortion introduced by doubly selective channels, equalization is required. Among various equalization techniques, we men...

Ngày tải lên: 22/06/2014, 23:20

... ID 47261, Pages 1–14 DOI 10.1155/ASP/2006/47261 Frequency-Shif t Zero-Forcing Time-Varying Equalization for Doubly Selective SIMO Channels Francesco Verde Dipartimento di Ingegneria Elettronica ... designing linear time-varying (LTV) finite-impulse response zero-forcing (ZF) equalizers for time- and frequency -selective (so-called doubly selective) single-input multiple...

Ngày tải lên: 22/06/2014, 23:20

... proposed for channel identification /equalization for TI channels [10–15]. For doubly selective channels, determinis- tic blind identification /equalization techniques are proposed in [16, 17], where for ... effect.Thesamecanbesaidwhen Q  = 8. For Q  = 12, the performance of the direct PSAM equalizer for K = N outperforms the one for K = 2N .For K = 2N the performance is e...

Ngày tải lên: 22/06/2014, 23:20

... image halftoning for desktop printers, smart image acqui- sition for digital still cameras, high-bitrate equalizers for multicar- rier ADSL receivers, and resource allocation for multiuser OFDM basestations. ... showed the values of m and Ω for d ifferent transmit and receive an- tenna numbers, up to the 6 × 6MIMOcase[10]. For ex- ample, for M = 4, (m, Ω) = (12.5216, 9.7758); fo...

Ngày tải lên: 22/06/2014, 22:20

... and 4 demonstrate the performance of various receivers perform- ing turbo equalization for the aforementioned channels. The cases shown correspond to (a) conventional equalization and decoding ... ACE-SIC is identical to its exact counterpart (CE- SIC) both for perfect a priori information (i.e., σ 2 x n → 0) and for no a priori information (i.e., σ 2 x n → 1). Note that similar app...

Ngày tải lên: 22/06/2014, 22:20

... 7. Notation:( ·) H is reserved for the matrix Hermitian, (·) −1 for the matrix inverse, ( ·) T for the matrix (vector) transpose, ( ·) ∗ for the complex conjugate, for the Kronecker product, tr {·} for the trace ... the multipath MIMO channel. For Rician frequency -selective fading channels, the ele- ments of the matrix H l, for all l ∈ [0, L], are defined similar to [45, 46] i...

Ngày tải lên: 21/06/2014, 11:20

... may provide improved performance. A straightforward way to do this is to set a threshold, and detect the crossing of this threshold [14]. For complex channels and for a time-varying SNR, the amplitude ... detection &replacement B(t E ) Median/FIR filters C(t E ) Timing estimate For ‘before’ replacement For ‘after’ replacement Figure 10: Block diagram for rule processing. 20 18...

Ngày tải lên: 21/06/2014, 23:20

... Information Theory,vol.49,no.2,pp. 371–381, 2003. [4] S. Jaggi, P. Sanders, P. A. Chou, et al., “Polynomial time algorithms for multicast network code construction,” IEEE Transactions on Information ... C i is a non-equally constraint of the form C i (x) ≤ 0, δ i ,andε i are sufficiently small positive scalars. The aforementioned algorithm can consequently be performed in a distributed fashio...

Ngày tải lên: 21/06/2014, 23:20

... inequalities for the gamma function,” Journal of Computational and Applied Mathematics, vol. 99, no. 1-2, pp. 167–175, 1998. 4 C. Giordano and A. Laforgia, “Inequalities and monotonicity p roperties for ... inequalities obtained in this paper to give some sufficient conditions for convergence of a q-series and sufficient conditions for divergence of a q-series. Theorem 4.1. Suppose a i...

Ngày tải lên: 22/06/2014, 06:20

... by b k =  M−1  q=0 y qk = ⎧ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎨ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎩  M−1  q=0 α q w q,0 for k = 0,  M−1  q=0 X q,k for k = 1, 2, ,  M − 1,  M−1  q=0 β q w q,0 for k =  M,  M−1  q=0 X ∗ q,M−k for k =  M +1, , M − 1, (2) where ( ·) ∗ denotes ... the basic MC-OCDM receiver. assumed to be used for point-to-point and for point-to- mu...

Ngày tải lên: 22/06/2014, 22:20