Results 111 to 120 of about 7,220 (258)

Comparison Study between NOMA and SCMA

, 2017
In this paper, the performance and system complexity of the candidate multiple access (MA) techniques for the next generation of cellular systems, namely, non-orthogonal multiple access (NOMA) (in this paper, we consider power domain MA as NOMA) and sparse code multiple access (SCMA), are investigated.
Moltafet, Mohammad., Mokari, Nader., Javan, Mohammad R., Azmi, Paiez.   +3 more
openaire   +2 more sources

A low complexity detector for downlink SCMA systems

IET Communications, 2017
Sparse code multiple access (SCMA) is a novel non‐orthogonal multiple access scheme for 5G systems, in which the logarithm domain message passing algorithm (Log‐MPA) is applied at the receiver to achieve near‐optimum performance. However, the computational complexity of Log‐MPA detector is still a big challenge for practical implementation, especially ...
Tian, L, Zhao, M, Zhong, J, Xiao, Pei, Wen, L   +4 more
openaire   +4 more sources

Modeling and Analysis of SCMA Enhanced D2D and Cellular Hybrid Network [PDF]

, 2016
Junyu Liu, Min Sheng, Lei Liu, Yan Shi, Jiandong Li   +4 more
openalex   +1 more source

Polar coded SCMA-OCDM based on chaotic scrambled SLM.

Optics Express
In this work, the polar coded sparse code multiple access (SCMA) scheme based on chaotic scrambled selective mapping (CS_SLM) is proposed for future passive optical networks (PONs).
Yu Bai, Bo Liu, Jianxin Ren, Y. Mao, Xiumin Song, Xiangyu Wu, Shuaidong Chen, Ying Li, Tingting Sun   +8 more
semanticscholar   +1 more source

Multidimensional Constellations for Uplink SCMA Systems --- A\n Comparative Study [PDF]

, 2018
Monirosharieh Vameghestahbanati, Ian Marsland, Ramy H. Gohary, Halim Yanıkömeroğlu   +3 more
openalex   +2 more sources

AN INTEGRATED TECHNOLOGY ACCEPTANCE MODEL FOR SMART CITY MOBILE APPLICATIONS: IDENTIFICATION OF KEY FACTORS AND EXTENSION OF TECHNOLOGY ADOPTION

International Journal of Management Studies
Smart cities have experienced significant improvements in service quality, resident satisfaction, sustainability, and economic development through the application of information and communication technology.
Musab Talha Akpınar, Mehmet Atak
doaj   +1 more source

Implications of WTO disciplines for special economic zones in developing countries [PDF]

Many developing countries operate geographically delineated economic areas in the form of export processing zones, special industrial zones, or free trade zones.
Creskoff, Stephen, Walkenhorst, Peter
core  

Low Complexity Receiver for Uplink SCMA System via Expectation Propagation [PDF]

, 2017
Xiangming Meng, Yiqun Wu, Yan Chen, Meng Cheng   +3 more
openalex   +1 more source

Resource Allocation in the RIS Assisted SCMA Cellular Network Coexisting with D2D Communications [PDF]

, 2023
Yukai Liu, Wen Chen, Kunlun Wang
openalex   +3 more sources

Windowed Joint Detection and Decoding with IR-HARQ for Asynchronous SCMA Systems. [PDF]

Entropy (Basel), 2023
Guan M, Zhu M, Bai B.
europepmc   +1 more source