Báo cáo hóa học: " Multilevel Codes for OFDM-Like Modulation over Underspread Fading Channels" pot

... l  )F  . (15) 2.3. Modulation scheme The diagonalization of underspread systems by the Weyl- Heisenberg bases naturally suggests using an OFDM-like modulation scheme for communication over underspread channels ... from Figure 12, for the rate pair (1/3, 2/3), for a given trellis complexity of both outer codes, the perfor- mance of the overall code is determined by the firs...

Ngày tải lên: 22/06/2014, 23:20

... Algorithm,” 1992, (Re- quest For Comments—1321), IETF Network working group. [14] R. Vida and E. Costa, “Multicast Listener Discovery Version 2 (MLD) for IPv6,” 2004, (Requests For Comments—3810), IETF ... is computationally infeasible for an adversary to discover any group key. Backward secrecy The join user cannot decrypt the content that was sent before his join. Forward secrecy Th...

Ngày tải lên: 22/06/2014, 22:20

... before and after the signal frame, we evaluate the result of the NHA to consider the overlap of the signal frames. We then determined whether the same tendency was observed for each method, for ... suitable values for each signal waveform and compared the analysis methods with the most suitable segmental SNR. For the case of white Gaussian noise, we use | ˆ D(k)| that is constant for...

Ngày tải lên: 20/06/2014, 22:20

... Find necessary and sufficient conditions for (1.3) to hold for all n on- negative sequences {a n } ∞ n=1 for as general kernels as possible. Remark 5.2. For the case v n = 1, n = 1,2, Proposition ... C  ∞  n=1  a ∗ n  p v n  1/p (3.18) holds for all nonincreasing sequences {a ∗ n } ∞ n=1 w ith the additional condition that {v n } ∞ n=1 is nonincreasing if and only if the conditio...

Ngày tải lên: 22/06/2014, 21:20

... = ∞  j=0 ε j y ( j) k ,0≤ k ≤ N, (3.5) uniformly for 0 ≤ k ≤ N,wherey (0) k and y ( j) k are the solutions of (2.2)and(2.4), respectively. More precisely, for all n ≥ 0 and all 0 ≤ k ≤ N,      y k (ε) ... 2,thenwe analyze the formal expansions obtained in [12]. 3.1. Perturbation method. Using the transformation z k = y N−k ,0≤ k ≤ N, (3.2) problem (3.1) is brought in the form (1.1)-...

Ngày tải lên: 22/06/2014, 22:20

... performance than system 2 un- der this condition. Therefore, system 1 has higher potential- ity to reduce its transmit power to improve the performance of system 2, while keeping its own performance ... be different for compensation. Basically, DS UWB outperforms MB-OFDM UWB with the same SINR, λ i for DS UWB is se- lected larger (see detailed discussion in Section 4.4). From (7), (8), and...

Ngày tải lên: 22/06/2014, 22:20

... filtering distribution. For any t ∈ N and for any λ 0:t ∈ Z t+1 ,denote γ t (λ 0:t ) def =    f (  y 0 |λ 0 ) f  λ 0  for t = 0, f (  y t |λ 0:t ,  y 0:t−1 ) f (λ t |λ 0:t−1 )fort>0. (38) With ... in fading channels,” IEEE Trans. Signal Processing, vol. 50, no. 2, pp. 241–254, 2002. [18] E. Punskaya, C. Andrieu, A. Doucet, and W. J. Fitzgerald, “Particle filtering for demod...

Ngày tải lên: 23/06/2014, 01:20

... good performance [4, 5]. Based on the optimal code rates from the capacity rule for MLC/PID, in this paper, the random regu- lar LDPC codes and SA-LDPC codes are used as the compo- nent codes for ... a given code rate for MLC/PID designs. Therefore, we list several parameters which should be satis- fied in the proposed MLC/PID design for 8PSK modulation. Multilevel LDPC for...

Ngày tải lên: 23/06/2014, 00:20

... binding induces a large conformational change which exposes a hydro- phobic binding domain (except for S100A10 which is locked in this conformation) [47]. This change in confor- mation allows an S100 ... are a family of over 20 proteins expressed in vertebrates exclu- sively and characterized by two calcium binding EF-hand motifs connected by a central hinge region [98]. Over forty year...

Ngày tải lên: 18/06/2014, 15:20

... diabetes. The utility for diabetes without hypoglycaemia ranged from 0.88 to 0.97, the mean utility for rare hypoglycaemic events (quarterly) ranged between 0.85 and 0.94. The utility for the intermittent ... not for citation purposes) years) they would sacrifice in return for being relieved of the health state and going to perfect health. The higher the proportion the respondent is...

Ngày tải lên: 18/06/2014, 19:20