Ergodic Interference Alignment With Delayed Feedback

Kang, Minho; Choi, Wan

doi:10.1109/lsp.2013.2253550

Cited by 24 publications

(23 citation statements)

References 10 publications

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“…Reference [39,40] proposed incorporating feedback mechanism in ergodic and retrospective interference alignment algorithm. The feedback mechanism is divided into two kinds: the first is delay channel informational transmitter, referred to as the CIS feedback.…”

Section: A Feedback Mechanismmentioning

confidence: 99%

Research on the communication method of mobile network shadow fading based on interference alignment algorithm

Zhou

2016

J Supercomput

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As the wireless communication signal encounters obstacles in the communication process caused by shadow fading, traditional communication methods try to add more microcells. But microcells make co-channel interference increase, and the effect is not good. This paper presents a communication method of mobile network shadow fading based on interference alignment algorithm. By anti-jamming processing the wireless network communication signal in shaded areas, and adjusting the effective communication probability and the data traffic channel in shaded areas, it aims to optimize the communication in the shaded areas. Experimental results show that the improved interference alignment algorithm can avoid the defects of co-channel interference caused by inter-cell wireless spectrum resource-constrained nature and reduce the communication error rate.

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Section: A Feedback Mechanismmentioning

confidence: 99%

Research on the communication method of mobile network shadow fading based on interference alignment algorithm

Zhou

2016

J Supercomput

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“…The achievable DoF reported in [18] was improved in [19], [20]. Recently, [21] proved the usefulness of ergodic interference alignment in a K-user interference channel when only delayed feedback is available and showed that the sum DoF of 2 can be achievable as K goes to infinity, which is the best DoF result until now in a K-user March 27, 2018 DRAFT interference channel with delayed CSIT. derived in [22]- [24].…”

mentioning

confidence: 95%

The Degrees of Freedom of the Interference Channel With a Cognitive Relay Under Delayed Feedback

Kang

Nosratinia

et al. 2017

IEEE Trans. Inform. Theory

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“…To align the interference signals in an efficient manner, private information retrieval retrieves the K -user channel values at the receiver side by using databases to recognize the desired message index values [6,7,8,9]. In particular, ergodic IA scheme required past (delayed) channel information (feedback) from the transmitter for effective IA strategies [10]. Authors in [11,12] reported that a dark-blind IA scheme consider staggered antenna switching approach (transmitter equipped with M antennas and K receivers) for vector broadcast channel to solve the interference problems.…”

Section: Introductionmentioning

confidence: 99%

Joint Interference Alignment and Power Allocation for K-User Multicell MIMO Channel through Staggered Antenna Switching

Selvaprabhu

Chinnadurai

Sarker

et al. 2018

Sensors

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In this paper, we characterise the joint interference alignment (IA) and power allocation strategies for a K-user multicell multiple-input multiple-output (MIMO) Gaussian interference channel. We consider a MIMO interference channel with blind-IA through staggered antenna switching on the receiver. We explore the power allocation and feasibility condition for cooperative cell-edge (CE) mobile users (MUs) by assuming that the channel state information is unknown. The new insight behind the transmission strategy of the proposed scheme is premeditated (randomly generated transmission strategy) and partial cooperative CE MUs, where the transmitter is equipped with a conventional antenna, the receiver is equipped with a reconfigurable multimode antenna (staggered antenna switching pattern), and the receiver switches between preset T modes. Our proposed scheme assists and aligns the desired signals and interference signals to cancel the common interference signals because the received signal must have a corresponding independent signal subspace. The capacity for a K-user multicell MIMO Gaussian interference channel with reconfigurable multimode antennas is completely characterised. Furthermore, we show that the proposed K-user multicell MIMO scheduling and K-user L-cell CEUs partial cooperation algorithms elaborate the generalisation of K-user IA and power allocation strategies. The numerical results demonstrate that the proposed intercell interference scheme with partial-cooperative CE MUs achieves better capacity and signal-to-interference plus noise ratio (SINR) performance compared to noncooperative CE MUs and without intercell interference schemes.

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Ergodic Interference Alignment With Delayed Feedback

Cited by 24 publications

References 10 publications

Research on the communication method of mobile network shadow fading based on interference alignment algorithm

Research on the communication method of mobile network shadow fading based on interference alignment algorithm

The Degrees of Freedom of the Interference Channel With a Cognitive Relay Under Delayed Feedback

Joint Interference Alignment and Power Allocation for K-User Multicell MIMO Channel through Staggered Antenna Switching

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