Carrier Sensing-Based Medium Access Control Protocol for WLANs Exploiting Successive Interference Cancellation

Uddin, Forkan; Mahmud, Sultan

doi:10.1109/twc.2017.2692221

Cited by 21 publications

(8 citation statements)

References 28 publications

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“…SIC has great potential to increase channel capacity and improve channel utilization. Therefore, existing studies [5], [6], [7] considered integrating SIC technology into 802.11 CSMA/CA protocols (which are called CSMA/CA-SIC protocols hereafter). The CSMA/CA-SIC protocols first let nodes perform multiple rounds of contention to generate multiple sequential winners and then let the winners transmit their frames concurrently.…”

Section: B Motivationmentioning

confidence: 99%

“…Existing SIC-aware protocols are mainly considered in past studies as the basis for new SIC-aware MAC protocols or for modifying existing protocols to exploit SIC [5], [6], [7], [8]. However, none of these studies can solve the two drawbacks we mentioned in Section I.B.…”

Section: A Sic-aware Designsmentioning

confidence: 99%

“…Based on the result of contention, the receiver determines which user-group can perform SIC transmission. CSMA-SIC [6] requires that each round of the contention process contain multiple competitions. Winners from each round send an RTS frame to the AP which selects the winners.…”

Section: A Sic-aware Designsmentioning

confidence: 99%

See 2 more Smart Citations

A Novel Successive-Interference-Cancellation- Aware Design for Wireless Networks Using Software-Defined Networking

Zhao

Feng

et al. 2021

IEEE Access

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In traditional CSMA/CA-based MAC designs supporting successive interference cancellation (SIC), channel utilization is inefficient, because the inherited CSMA/CA-style contention approach often forces the whole channel to remain idle and the early released channel is not utilized. In this paper, we propose Multi-CQ, which is the first software-defined networking (SDN)-based MAC design for wireless LANs that supports SIC and significantly improves the channel utilization. Multi-CQ, adopting SDN's functional separation idea and OFDMA, makes contention and data transmission be executed over two subchannels independently and concurrently, where the superposition coding are used for decoding combined signals, and multiple CQs (contention queues) are introduced to coordinate the concurrency. This concurrent execution greatly reduces the waste in channel contention. Next, adopting SDN's central control idea, Multi-CQ controller selects nodes who can finish their frame transmissions in almost equal time, thereby improving the channel utilization. Finally, we develop a theoretical model to optimize bandwidth allocation for channel contention and data transmission. Extensive simulations verify the effectiveness of our design and the accuracy of our theoretical model. This study is also helpful to better design wireless MAC protocols supporting other advanced functionalities such as MU-MIMO.

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Section: B Motivationmentioning

confidence: 99%

Section: A Sic-aware Designsmentioning

confidence: 99%

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A Novel Successive-Interference-Cancellation- Aware Design for Wireless Networks Using Software-Defined Networking

Zhao

Feng

et al. 2021

IEEE Access

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“…To solve the problem of spectrum access in dynamic networks, many methods can implement dynamic spectrum access, including competition algorithms (such as ALOHA [46] and CSMA [47] ), reservation algorithms (such as FPRP [48] and NbIA [49] ), and the queuing algorithms (such as DLPS [50] ). With the development of evolutionary algorithms, including GA [51,52] , PSO [53] , and biological foraging algorithms [54] , researchers are increasingly trying to integrate their use in dynamic spectrum access.…”

Section: Dynamic Spectrum Access Technologymentioning

confidence: 99%

Intelligent cognitive spectrum collaboration: Convergence of spectrum sensing, spectrum access, and coding technology

Cai

2020

Intell. and Converged Netw.

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For a future scenario where everything is connected, cognitive technology can be used for spectrum sensing and access, and emerging coding technologies can be used to address the erasure of packets caused by dynamic spectrum access and realize cognitive spectrum collaboration among users in mass connection scenarios. Machine learning technologies are being increasingly used in the implementation of smart networks. In this paper, after an overview of several key technologies in the cognitive spectrum collaboration, a joint optimization algorithm of dynamic spectrum access and coding is proposed and implemented using reinforcement learning, and the effectiveness of the algorithm is verified by simulations, thus providing a feasible research direction for the realization of cognitive spectrum collaboration.

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“…In these detectors, a decision is made about an interfering symbol in one stage, and then this symbol is subtracted from the other interfering symbols in the next stages. This process is repeated until all interfering symbols are detected [20,21]. This procedure removes interferences if the decisions of the detected symbols in previous stages are correct; otherwise, it will duplicate the contribution of the interference.…”

Section: Introductionmentioning

confidence: 99%

The Effect of the Eigenvalues of the Zero-Forcing Detector on Its Performance in the Space-Division Multiplexing System

Hassan¹,

Saleh²

2021

IJIES

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Zero-Forcing (ZF) detector is used in Space-Division Multiplexing (SDM) receiver to remove interference among the received symbols. Previous works showed that the power of channel noise is enhanced in the output of the ZF detector. They recommend using the ZF detector when the received Signal-to-Noise Ratio (SNR) is high. This work proves that the performance of the ZF detector depends on the eigenvalues of the channel correlation matrix. The paper shows that if the sum of the eigenvalues of this correlation matrix is equal to the rank of the channel matrix, the ZF detector will not enhance noise power at its outputs. Moreover, if the sum of the eigenvalues is smaller than the rank of the channel matrix, the ZF detector will reduce noise power at its outputs. In this work, a theorem, which demonstrates the performance of the ZF detector in SDM receiver, is introduced and proved. The proposed work uses smart antennas in the transmitter and receiver to control the elements and eigenvalues of the channel matrix. The introduced theorem and a complete SDM receiver with ZF detector are simulated and evaluated at different conditions with different criteria. A real-time SDM receiver with ZF detector is also implemented and evaluated. The simulation and implementation results are shown at the end of this study. The results of the proposed systems show that a ZF detector can be used to remove interference in the SDM system without enhancing the channel noise.

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Carrier Sensing-Based Medium Access Control Protocol for WLANs Exploiting Successive Interference Cancellation

Cited by 21 publications

References 28 publications

A Novel Successive-Interference-Cancellation- Aware Design for Wireless Networks Using Software-Defined Networking

A Novel Successive-Interference-Cancellation- Aware Design for Wireless Networks Using Software-Defined Networking

Intelligent cognitive spectrum collaboration: Convergence of spectrum sensing, spectrum access, and coding technology

The Effect of the Eigenvalues of the Zero-Forcing Detector on Its Performance in the Space-Division Multiplexing System

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