Uplink Scheduling in Wireless Networks with Successive Interference Cancellation

Mollanoori, Mohsen; Ghaderi, Majid

doi:10.1109/tmc.2013.56

Cited by 73 publications

(45 citation statements)

References 24 publications

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“…In this case, fairness among users can be ensured by minimizing the maximum outage probability as ( ) conditioned on (13a) and (13b). The fairness of a NOMA system can also be determined by controlling the rate allocated to concurrent transmissions, which in turn can be achieved by using different scheduling approaches [31].…”

Section: Fairness In Nomamentioning

confidence: 99%

Power-Domain Non-Orthogonal Multiple Access (NOMA) in 5G Systems: Potentials and Challenges

Islam

Avazov

Dobre

et al. 2017

IEEE Commun. Surv. Tutorials

2,043

1,162

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Abstract-Non-orthogonal multiple access (NOMA) is one of the promising radio access techniques for performance enhancement in next-generation cellular communications. Compared to orthogonal frequency division multiple access (OFDMA), which is a well-known high-capacity orthogonal multiple access (OMA) technique, NOMA offers a set of desirable benefits, including greater spectrum efficiency. There are different types of NOMA techniques, including power-domain and code-domain. This paper primarily focuses on power-domain NOMA that utilizes superposition coding (SC) at the transmitter and successive interference cancellation (SIC) at the receiver. Various researchers have demonstrated that NOMA can be used effectively to meet both network-level and user-experienced data rate requirements of fifth-generation (5G) technologies. From that perspective, this paper comprehensively surveys the recent progress of NOMA in 5G systems, reviewing the state-of-the-art capacity analysis, power allocation strategies, user fairness, and user-pairing schemes in NOMA. In addition, this paper discusses how NOMA performs when it is integrated with various proven wireless communications techniques, such as cooperative communications, multiple-input multiple-output (MIMO), beamforming, space-time coding, and network coding, among others. Furthermore, this paper discusses several important issues on NOMA implementation and provides some avenues for future research. I. INTRODUCTIONFrom analog phone calls through to all Internet Protocol services, including voice and messaging, each transition has been encouraged by the need to meet the requirements of the new generation of mobile technology. Subsequently, mobile communications technology is presently facing a new challenge, giving birth to a hyper-connected society through the emergence of fifth-generation (5G) services. With enormous potential for both consumers and industry, 5G is expected to roll out by 2020. From the next-generation radio access technology viewpoint, a step change in data speed and a significant reduction in end-to-end latency is a major concern for 5G, since the rapid development of the mobile Internet and the Internet of Things (IoT) exponentially accelerates the demand for high data-rate applications. In particular, many of the industry initiatives that have progressed with work on 5G declare that the network-level data rate in 5G should be 10-20 Gbps (that is, 10-20 times the peak data rate in 4G), and the user-experienced data rate should be 1 Gbps (100 times the user-experienced data rate in 4G). They also set the latency (end-to-end round-trip delay) at 1 millisecond (one-fifth of the latency in 4G).The underlying physical connection in a cellular network is called radio access technology, which is implemented by a radio access network (RAN). A RAN basically utilizes a channel access technique to provide the mobile terminals with a connection to the core network. The design of a suitable multiple access technique is one of the most important aspects in improvi...

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Section: Fairness In Nomamentioning

confidence: 99%

Power-Domain Non-Orthogonal Multiple Access (NOMA) in 5G Systems: Potentials and Challenges

Islam

Avazov

Dobre

et al. 2017

IEEE Commun. Surv. Tutorials

2,043

1,162

View full text Add to dashboard Cite

show abstract

“…Throughput and outage performances of NOMA have been evaluated in [9], [10]. In [11], the authors proposed a suboptimal algorithm to solve an uplink scheduling problem with SIC and fixed transmit power. A weighted proportional fairness-based multiuser scheduling scheme has been proposed to balance the total throughput and cell-edge user throughput in [12].…”

Section: Introductionmentioning

confidence: 99%

Joint Optimization of Power and Channel Allocation with Non-Orthogonal Multiple Access for 5G Cellular Systems

Lei¹,

Yuan²,

Ho³

et al. 2014

2015 IEEE Global Communications Conference (GLOBECOM)

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Non-orthogonal multiple access (NOMA) with successive interference cancellation (SIC), is considered as a candidate multi-user access scheme for 5G cellular systems. In this paper, we provide theoretical insights and solution algorithm for optimizing multi-user power and channel allocation in NOMA systems. We mathematically formulate the NOMA resource allocation problem and prove its NP-hardness. For solving the problem, we propose an algorithm combining Lagrangian duality and dynamic programming to deliver a competitive suboptimal solution. Numerical results demonstrate that the proposed algorithmic solution can significantly improve the system performance over orthogonal frequency division multiple access (OFDMA) as well as over other existing NOMA resource allocation scheme.Index Terms-Non-orthogonal multiple access (NOMA), successive interference cancellation (SIC), 5G, power allocation

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“…However, if SIC is applied to exploit interference in the context, mutually interfering transmissions may now take place and higher SE can be gained. Note that in order to reap the benefits of SIC, proper scheduling strategies are required to coordinate multiple concurrent transmissions [11][12][13].…”

Section: Related Workmentioning

confidence: 99%

“…Taking into account that gðLÞ computed in the two methods mentioned above should be equal, we finally get (11). h…”

Section: Lemmamentioning

confidence: 99%

Joint spectrum-efficient routing and scheduling with successive interference cancellation in multihop wireless networks

et al. 2015

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Spectrum-efficient routing has been subject to interest in the recent literature. The underlying scheduling scheme, however, assumes interference is harmful and concurrent neighboring transmissions are forbidden, and thus the Spectral Efficiency (SE) performance is restricted to some extent. In this paper, we propose a novel joint routing and scheduling scheme with Successive Interference Cancellation (SIC) to exploit interference in multihop wireless networks, such that the SE can be greatly improved. Specifically, we first devise an interesting transmission strategy that applies SIC to explore concurrent neighboring transmission opportunities on an arbitrary path. To maximize the SE benefit brought by concurrent neighboring transmissions, two low-complexity routing algorithms are then presented. Furthermore, based on theoretical analysis, closed-form expressions of approximate SE bound are derived and shown to be very accurate in terms of key network parameters. Numerous simulation results verify that significant SE gains can be obtained through SIC.

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Uplink Scheduling in Wireless Networks with Successive Interference Cancellation

Cited by 73 publications

References 24 publications

Power-Domain Non-Orthogonal Multiple Access (NOMA) in 5G Systems: Potentials and Challenges

Power-Domain Non-Orthogonal Multiple Access (NOMA) in 5G Systems: Potentials and Challenges

Joint Optimization of Power and Channel Allocation with Non-Orthogonal Multiple Access for 5G Cellular Systems

Joint spectrum-efficient routing and scheduling with successive interference cancellation in multihop wireless networks

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