Throughput Comparison of MC-CDMA and DS-CDMA with Frequency-domain Equalization and Adaptive Modulation and Coding

Garg, Gagan; Nakajima, Akira; Adachi, Atsushi

doi:10.1109/vetecs.2005.1543585

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…Ak is the amplitude of the kth user, w{i the tap-weight of desired user, Sk the spreading code of kth user, and, (72 the variance. [2,10]. In steady-state, the SINR trajectories of proposed CG-MOE algorithm is comparable with that of conventional MOE.…”

Section: Wopt (N)mentioning

confidence: 86%

A CG-MOE algorithm for frequency domain MC-CDMA receivers

Suebjakplong

Yuvapoositanon

2011

2011 International Symposium on Intelligent Signal Processing and Communications Systems (ISPACS)

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This paper presents a conjugate gradient minimum output energy (CG-MOE) algorithm for frequency domain MC CDMA receivers. The CG-MOE algorithm employs the basis of the conjugate gradient (CG) and minimum output energy (MOE) algorithms. The CG-MOE algorithm does not require training signal yet robust to the near-far problems. The CG-MOE has a comparable complexity to that of the recursive least squares (RLS) algorithm. The CG-MOE algorithm obtains the advan tages of fast convergence of CG and blind multiuser detection of MOE. The simulations and their results are investigated in frequency domain MC-CDMA receivers.

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Section: Wopt (N)mentioning

confidence: 86%

A CG-MOE algorithm for frequency domain MC-CDMA receivers

Suebjakplong

Yuvapoositanon

2011

2011 International Symposium on Intelligent Signal Processing and Communications Systems (ISPACS)

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“…A scheduling algorithm for both the adaptive modulation and coding (AMC) and multicode transmission is proposed in [11], which maximizes the Carrierto-Interference Ratio (CIR) to increase the throughput. A link adaptation for High Speed Packet Data Access (HSPDA) is presented in [12] by adaptive modulation and coding, multicode transmissions and Hybrid Automatic Repeat Request (HARQ). The paper also compares the throughput of multicarrier CDMA and direct sequence CDMA technologies using the proposed method.…”

Section: Introductionmentioning

confidence: 99%

A novel algorithm for link adaptation using fuzzy rule based system for wideband networking waveform of SDR

Zeeshan

Khan

2015

AEU - International Journal of Electronics and Communications

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“…A link adaptation for High Speed Packet Data Access (HSPDA) is presented in [15] by adaptive modulation & coding, multicode transmissions and Hybrid Automatic Repeat Request (HARQ). The paper compares the throughput of MC-CDMA and DS-CDMA technologies using the proposed method.…”

mentioning

confidence: 99%

A Novel Fuzzy Inference-Based Technique for Dynamic Link Adaptation in SDR Wideband Waveform

Zeeshan

Khan

2016

IEEE Trans. Commun.

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A new dynamic link adaptation technique based on a fuzzy inference system for hybrid multicode code division multiple access/time division multiple access wideband networking waveform of software defined radio is proposed. A constrained optimization problem is formulated under the quality of service, signal-to-noise ratio, and throughput constraints. The optimization problem is solved using the fuzzy inference system by dynamically changing the modulation technique and the number of multicodes assigned to each user. The proposed algorithm provides maximum possible data throughput as required by the user or application by reducing the packet retransmission overhead through the use of optimum waveform parameters decided through the fuzzy inference system. A novel contribution of the proposed algorithm is that it reduces the computational complexity and thus the power consumption by restricting the throughput to the required value even if the channel conditions are fair enough to allow higher throughput. Simulation results are presented to demonstrate the effectiveness of the proposed algorithm in achieving better throughput by efficiently reducing the packet retransmissions overhead.Index Terms-Multicode CDMA, link adaptation, fuzzy inference, SDR.

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Throughput Comparison of MC-CDMA and DS-CDMA with Frequency-domain Equalization and Adaptive Modulation and Coding

Cited by 5 publications

References 9 publications

A CG-MOE algorithm for frequency domain MC-CDMA receivers

A CG-MOE algorithm for frequency domain MC-CDMA receivers

A novel algorithm for link adaptation using fuzzy rule based system for wideband networking waveform of SDR

A Novel Fuzzy Inference-Based Technique for Dynamic Link Adaptation in SDR Wideband Waveform

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