[PDF] Top 20 MAI-free, MC-CDMA systems based on Hadamard-Walsh codes
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MAI-free, MC-CDMA systems based on Hadamard-Walsh codes
... achieve MAI-free MC-CDMA systems in both uplink and downlink directions was proposed by prop- erly choosing a subset of codewords from Hadamard–Walsh ...the ... See full document
14
An approximately MAI-free multiaccess OFDM system in carrier frequency offset environment
... for MAI caused by CFO as well as self-CFO impairments. Based on the analytical results, we present a code selection scheme to mitigate MAI by choosing proper orthogonal ...the ... See full document
15
An approximately MAI-Free multiaccess OFDM system in fast time-varying channels
... Approximately MAI-Free Multiaccess OFDM System in Fast Time-Varying Channels Layla Tadjpour, Student Member, IEEE, Shang-Ho Tsai, Member, IEEE, and ...odd Hadamard–Walsh ...odd ... See full document
13
On the transmitter-based preprocessing for 2-D OFDM-CDMA forward-link systems over time-varying Rayleigh fading channels
... G/K codes are allocated to each user (multicode transmission), and the system can exploit the multiuser diversity gain to increase the sum data ...performed on a frame-by- frame ...The ... See full document
7
Blind ICA detection based on second-order cone programming for MC-CDMA systems
... fact that the subspace-based methods are less sensitive to the heavily correlated coefficient by reason of the influence of noise subspace on higher-power signal eigenvectors be- coming weaker while ... See full document
14
A novel low-complexity near-ML multiuser detector for DS-CDMA and MC-CDMA systems
... Since in general 2-(k) is different for every k, it is also sensible to retain different numbers of survivors at different levels as proposed in this paper, rather t[r] ... See full document
6
A traffic shedding algorithm for soft-handoff in MC-CDMA systems
... Figure 5 shows system throughput against call arrival rate according to the sending or receiving data by a mobile. The hot-spot situation begins at the traffic load 500 calls/min and CTSA performs best, but CSH is worst. ... See full document
6
Comments on "Novel Combinatorial Constructions of Optical Orthogonal Codes for Incoherent Optical CDMA Systems
... families based on mutually orthogonal Latin rectangles (MOLRs), integer lattice design, and affine geometries (AGs) proposed by the authors is not fixed and is not equal to half of the code weight—the ... See full document
1
Effects of subcarrier power allocation on an interference avoidance code assignment strategy for multirate MC-DS-CDMA systems
... synchronous MC-DS-CDMA with TF-domain ...an MAI-coefficient-aided interference avoidance code assignment strategy was applied to eliminate ...The MAI coefficient was used to predict the ... See full document
14
Blind recursive tracking of carrier frequency offset (CFO) vector in MC-CDMA systems
... in MC-CDMA systems using the EM algorithm was studied in [15], where the gradient decent technique was proposed to deal with the nonlinear optimization problem in the CFO ... See full document
10
Toward MIMO MC-CDMA
... OFDM systems field results for OFD M and OFDM with frequency domain spreading,” in Proceeding of IEEE VTC’02, ...MIMO-OFDM systems in mobile wireless channesl”, in Proceeding of IEEE VTC’04 Spri ... See full document
26
B3G and MIMO MC-CDMA
... Helard,’’Performance of single and multi-user detection techniques for a MC-CDM A system over channel model used for HIPERLAN2,’’ IEEE International Symposium on2000 IEEE Sixth Sp read [r] ... See full document
24
Research on Multiuser Detection for Space-Time Coded MC-CDMA Mobie Communication Systems 林國維、黃永發 ; 陳雍宗
... communication systems over frequency selective fading ...for MC-CDMA ...STC-MC-CDMA systems. It is noted that a 10dB-gain can be achieved for the STC-MC-CDMA ... See full document
2
Multiple access in the presence of optical-beat and co-channel interference using Walsh-code-based synchronized CDMA technique
... using Walsh-code-based synchronized code-division-multiple ac- cess (S-CDMA) technique to achieve multiple access in the pres- ence of optical-beat interference ...subcarrier- based common ... See full document
3
Construction and Performance Analysis of variable-Weight optical Orthogonal Codes for Asynchronous Optical CDMA Systems
... design on con- stant-weight OOCs and partitions a constant-weight codeword into a family of codes with a smaller code ...proposed codes are discussed in this ...proposed codes are also ... See full document
9
Optical orthogonal codes with large crosscorrelation and their performance bound for asynchronous optical CDMA systems
... maximal systems shows that the system density is around ...the codes can be formed at early constructed ...two codes are 0 or 1 (while only a very small portion have value of , the numerical results ... See full document
8
Channel interference reduction using random Manchester codes forboth synchronous and asynchronous fiber-optic CDMA systems
... Index Terms-Code division multiple access (CDMA), optical fiber communication, optical hardlimiter, optical orthogonal codes, prime sequence codes.. INTRODUCTION.[r] ... See full document
8
Accumulate Codes Based on 1+D Convolutional Outer Codes
... TRANSACTIONS ON COMMUNICATIONS, VOL. 57, NO. 2, FEBRUARY 2009 311 Accumulate Codes Based on 1+D Convolutional Outer Codes Mao-Ching Chiu, Member, IEEE, and Hsiao-feng (Francis) Lu, ... See full document
4
Design of Blind Adaptive Mobile Receiver in MC-CDMA Communication Systems 魏文韜、武維疆
... multicarrier CDMA (MC-CDMA) ...are based on recursive-least-squares (RLS) and generalized sidelobe canceller (GSC) as well as gradient search adaptation ... See full document
2
MC-CDMA與MC-DS-CDMA在多路徑通道下之系統效能比較
... A Thesis Submitted to Department of Communication Engineering College of Electrical Engineering and Computer Science National Chiao Tung University In Partial Fulfillment of the Requirem[r] ... See full document
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