multiple-access Rayleigh channel
Transmitter Diversity and Multiuser Precoding for Rayleigh Fading Code Division Multiple Access Channels
... the channel variation increases with the mobile ...the channel profile is quite different at the time of transmission when compared to the outdated ...
133
Multiple access interference in MIMO CDMA systems under Rayleigh fading: statistical characterization and applications
... of multiple-input-multiple-output (MIMO) code division multiple access (CDMA) systems is multiple access interference (MAI) which can reduce the system’s capacity and increase ...
18
Quantize-and-Forward Schemes for the Orthogonal Multiple-Access Relay Channel
... unequal channel quality on the source–relay ...a Rayleigh block fading environment, the relay chooses a suitable quantizer from a fixed set based on the SNR on the incoming links, and forwards its ...
11
Joint Closed-Loop Power Control and Base Station Assignment for DS-CDMA Receiver in Multipath Fading Channel with Adaptive Beamforming Method
... division multiple access (DS-CDMA) receiver in the presence of frequency-selective Rayleigh ...the multiple access interference (MAI) from other users is ...
12
Bit Error Rate Performance for Multicarrier Code Division Multiple Access over Generalized η-μ Fading Environment
... The Bit Error Rate (BER) performance of the MC-CDMA system over frequency selective fading channels was addressed using equal gain combining and maximal ratio combining [3]. Effects of multipath delay on multicarrier ...
6
An Implementation of Nonlinear Multiuser Detection in Rayleigh Fading Channel
... In multiple-access channels, not only do the received ampli- tudes vary with time, but so too do the received signature waveforms, due to channel ...sider Rayleigh distributed signal ...
9
Implementation of multi carrier code division multiple access frequency division multiple access with beyond 4G specifications
... over Rayleigh and AWGN Channel simulation is presented and MC-CDMA System with N-point FFT size is simulated to optimize the number of points in MC-CDMA ...
55
Bi-Level Fh-Cdma Scheme For Communication Systems Over Rayleigh And Rician Channels
... to multiple access interference (MAI) and multipath interference, less stringent power ...allows multiple users to share the same transmission channel simultaneously by assigning a unique FH ...
6
Carrier Inferrometric Code Based Variable Rate Transmission Schemes for Satellite Communication System
... Division Multiple Access (MC-CDMA) is a promising approach to the challenge of providing high data rate in mobile satellite ...for multiple user. Assuming a frequency selective Rayleigh fading ...
8
Performance Evaluation of a DS CDMA System in a Rayleigh Fading Environment
... a Rayleigh fading channel has been investigated in this re- ...wireless channel either AWGN channel or Rayleigh distributed flat or frequency selective fading chan- ...Division ...
9
The Information Capacity of. Multiuser Channels. Mohammad Jafar Rezaeian. B.S. (Electronics), M.S. (Telecommunication)
... the channel where the receiver can detect messages with arbitrarily small probability of ...error. Channel capacity depends on the statistical behavior of the channel (for a discrete channel ...
137
MIMO CONFIGURATION SCHEME WITH SPATIAL MULTIPLEXING AND QPSK MODULATION
... through multiple spatial ...the channel at transmitter. It decomposes the channel coefficient matrix using SVD and uses these decomposed unitary matrices as pre- and post-filters at the transmitter ...
8
Characterization and Optimization of LDPC Codes for the 2 User Gaussian Multiple Access Channel
... We address the problem of designing good LDPC codes for the Gaussian multiple access channel (MAC). The framework we choose is to design multiuser LDPC codes with joint belief propagation decoding on ...
10
How Many Channels Should Be Sensend in Cognitive Radio Networks?: An Energy Efficiency Perspective
... spectrum access capability and efficient spectrum utilization ...as channel occupancy modeling, spectrum sensing, spectrum decision and resource ...state-of-the-art channel assignment algorithms, to ...
8
Title: ACCESS TO HIDDEN TERMINAL PROBLEM USING CHANNEL TONE MULTIPLE ACCESS
... called Channel Tone Multiple Access has been compared with CSMA through computer simulations in terms of throughput ...the Channel Tone Multiple Access protocol, the maximum ...
6
DF based sum rate optimization for multicarrier multiple access relay channel
... We consider communication over a two-source multiac- cess relay channel in which all the channels are assumed to be frequency selective. In order to handle the frequency selectivity of the channels, we incorporate ...
19
Lidar temperature series in the middle atmosphere as a reference data set – Part 1: Improved retrievals and a 20-year cross-validation of two co-located French lidars
... The receiver assembly consists of four 53 cm mirrors, each having a focal length of 1500 mm, a field of view of 0.67 mrad, and an average parallax of 3100 mm. Each of these four telescopes is focused onto an ...
17
Channel Estimation for SCM OFDM Systems by Modified Kalman Filter
... Kalman channel estimation algorithms compared to LS and MMSE estimation algorithms in channel model A and model ...Kalman channel estimation algorithms for data detection com- pared to LS and MMSE ...
5
Survey: QoS measuring and enhancement of DVB RCS in Satellite Communication
... return channel is rapidly changing into mandatory to serve each the requirements of the content provider and to alter delivery optimizations (such as adaptive coding and ...
8
Improved Channel Estimation Algorithm for OFDM System over Slow Fading Rayleigh Channel
... selective channel into flat ...fading channel has adverse effect on the performance of Bit Error Rate ...fading channel. Channel estimation and equalization can reduce the impairments caused ...
5