The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The Gaussian fading channel is studied, in which the channel from the transmitter to the receiver is corrupted by a multiplicative fading coefficient H and an additive Gaussian random noise. It is assumed that the channel is experiencing block fading, and the transmitter does not know the channel state information (CSI). The receiver is assumed to have full knowledge of the CSI. If the channel state...
We determine the exact per-user multiplexing gain (MG) of Wyner’s soft-handoff network model when neighbouring transmitters and neighbouring receivers can communicate over rate-limited pipes. The per-user MG is determined, in function of the capacities of these conferencing links and of the maximum number of allowed conferencing rounds. The results reveal a certain duality between transmitter and...
This paper considers the minimum mean p-th error (MMPE) estimation problem: estimating a random vector in the presence of additive white Gaussian noise (AWGN) in order to minimize an Lp norm of the estimation error. The MMPE generalizes the classical minimum mean square error (MMSE) estimation problem. This paper derives basic properties of the optimal MMPE estimator and MMPE functional. Optimal estimators...
In this paper, the sum capacity of the Poisson Z-interference channel that models optical communication systems with multiple transceivers is investigated. First, the capacity region of the Poisson Z-interference channel is shown to remain the same if we approximate the Poisson Z-interference channel with a discrete time memoryless binary input binary output Z-interference channel. Second, building...
• These results provide the engineering insight to the good performance of the Han and Kobayashi scheme on the interference channel. We show that the Han and Kobayashi scheme is optimal MMSE-wise. • The results can be easily extended to K MMSE constraint [Bustin and Shamai, submitted ISIT 2012]. • The engineering advantage of the MMSE disturbance measure over the mutual information measure in the...
We present upper and lower bounds on the achievable average user data rates in the downlink of a one-dimensional Wyner cellular channel model when limited cooperation and linear precoding are employed. These bounds show that the user data rates can be dramatically increased compared to those achievable with non-cooperating cellular systems. Furthermore, the bounds show that near optimal performance...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.