Novel Low-Density Signature for Synchronous CDMA Systems Over AWGN Channel

By Reza Hoshyar, Ferry P. Wathan, Rahim Tafazolli. IEEE Transactions on Signal Processing, 2008

585 citations recorded by the source corpus.

Subfields: Computer Networks and Communications, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/5e4b405202c92fd77a12f463ca1247a8b59fd935

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In Computer Networks and Communications

In Electrical and Electronic Engineering

Citations in the corpus

6G for Vehicle-to-Everything (V2X) Communications: Enabling Technologies, Challenges, and Opportunities (2020, background): “There are two main types of NOMA: power-domain NOMA [69], [70] and code-domain NOMA [22], [71], such as SCMA [21], [72]–[74] and resource spread multiple access [75], in which multiple users are separated by different power levels and different codebooks/sequences, respectively.”
Power-Domain Non-Orthogonal Multiple Access (NOMA) in 5G Systems: Potentials and Challenges (2016, background): “Various researchers have demonstrated that NOMA can be used effectively to meet both network-level and user-experienced data rate requirements of fifth-generation (5G) technologies.”
Modulation and Multiple Access for 5G Networks (2017, background): “1) LDS-CDMA: LDS-CDMA [73] is a novel type of CDMA.”
Pattern Division Multiple Access—A Novel Nonorthogonal Multiple Access for Fifth-Generation Radio Networks (2017, methodology): “The criteria of maximum constellation-constrained capacity (CC-Capacity) [15] can be used to design a PDMA pattern matrix especially for uplink application.”
Evolution of NOMA Toward Next Generation Multiple Access (NGMA) for 6G (2021, unknown): “The family of CD-NOMA schemes has many members, such as Low-Density Signature (LDS)-CDMA [34], LDS-OFDM [35], Sparse Code Multiple Access (SCMA) [36], and Pattern Division Multiple Access (PDMA) [37].”
Grant-Free Non-Orthogonal Multiple Access for IoT: A Survey (2019, background): “Some prominent LDS and non-LDS schemes are LDS-CDMA [66]–[68], LDS orthogonal frequency-division multiplexing (LDS-OFDM, [69]–[71]), sparse code multiple access (SCMA, [72]–[80]), pattern division multiple access (PDMA, [82]–[87]), LDS signature vector extension (LDS-SVE, [88]), multi-user shared…”
Non-orthogonal multiple access for 5G: solutions, challenges, opportunities, and future research trends (2015, methodology): “It is expected to derive the closedform expression to reveal the relationship between the achievable rate and LDS parameters such as sequence sparsity and overloading factor.”
Cellular, Wide-Area, and Non-Terrestrial IoT: A Survey on 5G Advances and the Road Toward 6G (2021, background): “In spite of its moderate detection complexity, LDS suffers from performance degradation for constellation sizes larger than QPSK. SCMA is a multi-dimensional codebook NOMA scheme in which the encoder directly maps incoming data bits to SCMA codewords selected from a layer-specific codebook where eac”