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Description: 这是一个关于多输入多输出系统的频域忙识别系统的matlab源码，作者基于二阶和更高阶统计，获得了比较良好的识别效果，文件中包含了文章，可参照起来理解源码。-This is one of the multiple-input multiple-output system in the frequency domain busy Recognition System Matlab source, Based on the second-order and higher-order statistics, access to a relatively good recognition results, the paper contains articles, can be read in the light source.
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Author: 到达 |
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Description: this the code for orthogonal code divison multiple acce-this is the code for orthogonal code divison multiple access
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Size: 5120 |
Author: satya |
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Description: AGILENT关于OFDMA设计的难得的参考资料-This application note is a guide
to effective measurement and
troubleshooting of IEEE 802.16e
OFDMA “Mobile WiMAX” signals,
components, and systems. The
most distinctive term used to
describe this new technology is
OFDMA or orthogonal frequency
division multiple access, and
therefore we will use the term
OFDMA in this note as a compact
reference to the signal and its
associated standard.
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Author: 徐兴 |
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Description: 在matlab平台下实现仿真CDMA码分多址通信信号调制信号产生、瑞丽衰落信道以及RAKE接收机的仿真测试程序，能够测议等-In the matlab platform for simulation CDMA code division multiple access communication signals modulated signal generator, Ruili fading channel and the RAKE receiver simulation test program to test proposed, etc.
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Author: 李俊 |
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Description: 多载波码分多址（MCCDMA）在瑞利信道的仿真-Multi-carrier code division multiple access (MCCDMA) simulation in Rayleigh Channel
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Author: kaka |
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Description: Multiple Access Channel with Generalized FeedBack rate region analysis MAtlab Code
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Author: mehmet |
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Description: Fast multuple access I-Fast multuple access IEEE
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Author: ram |
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Description: This paper presents a technique which is based on pattern recognition techniques, in order to estimate
Mobile Terminal (MT) velocity. The proposed technique applies on received signal strength (RSS) measurements
and more precisely on information extracted from Iub air interface, in wideband code-division multiple access
(WCDMA) systems for transmission control purposes. Pattern recognition is performed by Hidden Markov Model
(HMM), which is trained with downlink signal strength measurements for specific areas, employing Clustering
LARge Applications (CLARA) like a clustering method. Accurate results from a single probe vehicle show the
potential of the method, when applied to large scale of MTs.
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Author: anna |
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Description: In telecommunications and computer networks, multiplexing (also known as muxing) is a method by which multiple analog message signals or digital data streams are combined into one signal over a shared medium. The aim is to share an expensive resource.
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Author: Dauz |
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Description: Spread Spectrum Multiple Access Communications
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Author: arash |
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Description: MULTI CARRIER CODE DIVISION MULTIPLE ACCE-MULTI CARRIER CODE DIVISION MULTIPLE ACCESS
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Author: VELAVAN.P |
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Description: This paper presents a non-orthogonal multiple access
(NOMA) concept for future radio access (FRA) towards the 2020s
information society
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Author: le anh |
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Description: 5g-research-on-waveform-and-multiple-access-techniques
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Author: cihanwest
|
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Description: interleave division multiple access
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Author: ashade |
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Description: In this letter, the performance of non-orthogonal multiple access (NOMA) is investigated in a cellular downlink scenario
with randomly deployed users. The developed analytical results
show that NOMA can achieve superior performance in terms of
ergodic sum rates; however, the outage performance of NOMA depends critically on the choices of the users’ targeted data rates and
allocated power. In particular, a wrong choice of the targeted data
rates and allocated power can lead to a situation in which the user’s
outage probability is always one, i.e. the user’s targeted quality of
service will never be met
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Author: dipfr@yahoo.fr |
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Description: We propose a tractable expression for the
outage probability in single-cell uplink non-orthogonal multiple access (NOMA) systems serving an arbitrary number of
users. The expression is obtained by approximating the interuser interference using a shifted-gamma distributed random
variable. We then formulate and propose an efficient iterative
algorithm for the outage-constrained min–max power allocation
problem for the NOMA system. To give a rigorous comparison, we solve the outage-constrained min–max power allocation
problem for the orthogonal multiple access (OMA) counterpart
where both the user power allocation and the radio resource
division pattern are optimized. Simulations confirm the accuracy
of the derived outage probability expression for the NOMA
system. Also, we demonstrate that fairness among users in terms
of transmission power can be achieved by NOMA. Moreover,
NOMA can bring significant power savings to the users as
compared with OMA
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Author: dipfr@yahoo.fr |
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Description: In order to achieve diverse arrived power in uplink
non-orthogonal multiple access (NOMA), an uplink power control
scheme is proposed. The proposed scheme makes evolved NodeB
(eNB) distinguish the multiplexing user equipments (UEs) in
power domain. The outage performance and the achievable sum
data rate for the proposed scheme are theoretically analyzed, and
the closed-form expressions of outage probability and achievable
sum data rate are derived. By simulation, we show that the outage
performances are related to both the power back-off step and
the target data rate. Compared with the traditional orthogonal
multiple access (OMA) scheme, the proposed NOMA scheme
significantly improves the achievable sum data rate.
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Author: dipfr@yahoo.fr |
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Description: Non-orthogonal multiple access (NOMA) is a promising air-interface technology for its ability to support massive wireless mobile terminals. In this paper, the outage performance for
uplink NOMA systems employing the dynamic ordered successive
interference cancellation receiver is analyzed under the independent but not identically distributed (i.ni.d.) fading environment.
We theoretically reveal the general approach to derive the closedform outage probability expression for an arbitrary number of
serving users. Under the i.ni.d. fading environment, the probability
for each possible decoding order is derived respectively based on
the observation of the time-varying received power strength for
each user. Furthermore, encountering the challenge of solving the
multidimensional integration, a recursive method is proposed to
deal with the conditional outage probabilities under a certain
decoding order as a joint probability problem with the linear
constraints of the decoding order and the required data rate.
Finally, we derive the closed-form outage probability expressions.
The simulations are performed to validate the accuracy of the
theoretical results and reveal the superiority of the dynamic mode
over the fixed one.
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Author: dipfr@yahoo.fr |
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Description: To address the ever increasing high data rate and
connectivity requirements in the next generation 5G wireless
network, novel radio access technologies (RATs) are actively
explored to enhance the system spectral efficiency and connectivity. As a promising RAT for 5G cellular networks, nonorthogonal multiple access (NOMA) has attracted extensive
research attentions. Compared with orthogonal multiple access
(OMA) that has been widely applied in existing wireless communication systems, NOMA possesses the potential to further
improve system spectral efficiency and connectivity capability.
This paper develops analytical frameworks for NOMA downlink
and uplink multi-cell wireless systems to evaluate the system
outage probability and average achievable rate. In the downlink
NOMA system, two different NOMA group pairing schemes are
considered, based on which theoretical results on outage and
achievable data rates are derived. In the uplink NOMA, revised
back-off power control scheme is applied and outage probability
and per UE average achievable rate are derived. As wireless
networks turn into more and more densely deployed, inter-cell
interference has become a dominant capacity limiting factor but
has not been addressed in most of the existing NOMA studies.
In this paper a stochastic geometry approach is used to model a
dense wireless system that supports NOMA on both uplink and
downlink, based on which analytical results are derived either in
pseudo-closed forms or succinct closed forms and are further
validated by simulations. Numerical results demonstrate that
NOMA can bring considerable system-wide performance gain
compared to OMA on both uplink and downlink when properly
designed
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Author: dipfr@yahoo.fr |
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