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Using the matrix notation, it is useful to consider the form of a receive matrix FRx given a transmit matrix.
Given a transmit pulse optimized according to the orthogonal or bi-orthogonal methods, two receive pulse designs are considered here: so-called naive receiver which is designed without channel information or max-SINR receiver which takes channel information into the design procedure.
Using (7) and (8), Table 2 shows the simulated path loss between base station BSA and users A and D and the expected receive power given a transmit and receive antenna gain of 14 dBi, line losses of 0.5 dB and an EIRP of 1 W. The required transmission power to create a link with a received signal strength of - 85 dBm is also calculated.
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Firstly the case of individual subcarrier transmission is studied to find out that, given a total transmit power limit, how to maximize its receiving SNR.
The main contribution of this article is a method that provides an upper bound to the following OFDMA-SDMA RA problem for mixed RT and nRT traffic: for a given time slot, find the user selection and beamforming vectors that maximize a linear function of the users rates, given a total transmit power constraint and minimum rate constraints for RT users.
We compare the system presented herein to the suboptimal, linear-programming-based rate-adaptive (RA) resource allocation method of [22, 23], where the objective is to maximise the minimum rate in a downlink multiuser OFDM environment, given a total transmit power constraint.
Specifically, given an average transmit power constraint, the channel capacity of a system with OSPR, C OSPR (bits/second), is defined as [12] C OSPR = B 2 ∫ γ 0 ∞ log 2 ( γ γ 0 ) f γ d γ (21).
Given an eNodeB transmitting at the standard power (48 dBm), the received power at a UE located at the edge of a cell is of -100.80 dBm for the largest possible cell with radius 0.4 Km (i.e., -100.80 dBm is the receiver sensitivity in the DL).
In order to give a vote, each participant was given a keypad which transmitted their answers automatically on radio frequency to a receiver.
The French reporters were given a device used to transmit simultaneous translations, but not headsets.
Second, given a fixed number of transmit antennas and users, the throughput is affected by SNR to a greater extent than by the number of feedback bits in the normal (or low -SNR region and vice versa in the high-SNR region.
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