Performance Evaluation of a Non-Coherent Digital Delay-Locked Loop in Rayleigh Fading Channels
نویسندگان
چکیده
منابع مشابه
Performance of Gaussian Signalling in Non Coherent Rayleigh Fading Channels
The mutual information of a discrete time memoryless Rayleigh fading channel is considered, where neither the transmitter nor the receiver has the knowledge of the channel state information except the fading statistics. We present the mutual information of this channel in closed form when the input distribution is complex Gaussian, and derive a lower bound in terms of the capacity of the corres...
متن کاملQuasi-coherent Delay-locked Loops for Fading Channels
In a coherent RAKE receiver the complex channel coee-cient estimate can be used to attain the phase coherency in DLL and the eeect of data modulation can be removed via decision feedback. The resulting algorithms are called quasi-coherent delay-locked loops (QCDLL). The performance of four variations for QCDLLs based on lead-lag phase-locked loops has been analyzed by computer simulations. All ...
متن کاملCapacity of non-coherent Rayleigh fading MIMO channels
The capacity of discrete time uncorrelated Rayleigh fading multiple input multiple output (MIMO) channels was investigated without channel state information (CSI) at either the transmitter or the receiver. To achieve the capacity, the amplitude of the multiple input needs to have a discrete distribution with a finite number of mass points with one of them located at the origin. It is shown how ...
متن کاملNon-coherent Rayleigh fading MIMO channels: Capacity Supremum
This paper investigates the limits of information transfer over a fast Rayleigh fading MIMO channel, where neither the transmitter nor the receiver has the knowledge of the channel state information (CSI) except the fading statistics. We develop a scalar channel model due to absence of the phase information in non-coherent Rayleigh fading and derive a capacity supremum with the number of receiv...
متن کاملPerformance Analysis of a Complex Multicode Tracking Loop in Bandlimited Rayleigh Fading Channels
This paper presents the root-mean-squared tracking error performance analysis of a class of coherent digital delay-locked loops for multicode direct sequence spread spectrum signals in bandlimited correlated Rayleigh fading channels. In the transmit side, multiple independent PSK-modulated data streams in the in-phase and qudrature phase branches are spread by short mutually orthogonal codes be...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International journal of Computer Networks & Communications
سال: 2010
ISSN: 0975-2293
DOI: 10.5121/ijcnc.2010.2607