Interference alignment and cancellation

Gollakota, Shyamnath; Perli, Samuel D.; Katabi, Dina

doi:10.1145/1594977.1592588

Cited by 126 publications

(151 citation statements)

References 16 publications

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“…Higher order modulation and coding schemes, like 256-QAM along with MIMO, further increase the spectral efficiency and system capacity [24]. Multiple Access techniques like Non-Orthogonal Multiple Access (NOMA), Sparse Coded Multiple Access (SCMA), and Filter Bank MultiCarrier (FBMC) can be used to enhance spectral efficiencies.…”

Section: N Energy Efficiency and Energy Harvestingmentioning

confidence: 99%

A Survey on Current Repertoire for 5G

Nadeem¹,

Saeed²,

Khan³

2017

IJITCS

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Abstract-Cellular technology progressed miraculously in the last decade. It has redefined communication paradigm. Statistics provided by Ericson and Cisco show the number of mobile connected devices will reach figures of 9.2 billion and 11.6 billion respectively by 2020. Overall connected devices will surpass 50 billion then. Extremely higher data rates, zero latency, massively scalable, connecting everything anywhere is what that 5G promises. To meet such ambitious goals which apparently seems challenging, the tools and technologies that mobile communication has in its repertoire and what it needs more either enhancement in existing solutions or new solution or joint venture of both, is a question that demands an answer. To realize 5G, evolution and revolution both approaches are being employed. Evolution seeks enhancements in existing technologies while revolution looks for new innovations and technologies. Extension in frequency spectrum, network densification, MIMO, carrier aggregation, Centralized-RAN, HetNets, and Network Functionality Virtualization are the key enablers. This paper disseminates information about ongoing research and development of 5G.

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Section: N Energy Efficiency and Energy Harvestingmentioning

confidence: 99%

A Survey on Current Repertoire for 5G

Nadeem¹,

Saeed²,

Khan³

2017

IJITCS

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“…In order to check the validity of the model in (6), and to assess the performance of relative calibration in a practical system, the proposed algorithm was applied to measurements collected using the Eurecom MIMO OpenAir Sounder (EMOS), a subsystem of the OpenAirInterface LTE testbed (http://www.openairinterface.org).…”

Section: Validation Using Measured Datamentioning

confidence: 99%

“…Several recent experimental works, such as [6], [7], have successfully demonstrated the use of relative calibration. They have in common that calibration is formulated using a frequency-flat channel representation.…”

Section: Introductionmentioning

confidence: 99%

Towards practical channel reciprocity exploitation: Relative calibration in the presence of frequency offset

Guillaud¹,

Kaltenberger

2013

2013 IEEE Wireless Communications and Networking Conference (WCNC)

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Abstract-Relative calibration has been proposed as a simple way to practically exploit the reciprocity of the wireless channel. It is based on a simple convolutional model for the relationship between the channel impulse responses in both directions, and accounts for the discrepancies between transmit and receive radiofrequency components, without the need for specific calibration hardware. However, the relative calibration methods developed so far have been shown to lack robustness with respect to frequency offset between the devices on both sides of the considered channel. In this article, we introduce a relative calibration algorithm that properly deals with the presence of frequency offset. We verify its robustness and assess its performance through simulations, and validate experimentally the proposed model on measured channels.

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“…The biggest limiting factor of SIC is its requirement of significant signal strength differences among overlapped signals. Other techniques including [5][6][7] have adopted similar interference cancellation techniques for decoding the randomly arriving packets with multiple frequency offsets (MFOs).…”

Section: Introductionmentioning

confidence: 99%