Full-Duplex Heterogeneous Networks With Decoupled User Association: Rate Analysis and Traffic Scheduling

Liu, Chun-Hung; Hu, Heng-Ming

doi:10.1109/tcomm.2018.2883317

Cited by 16 publications

(11 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…and X K (X i ) is the projection of U K (U i ), (b) is obtained by the PGFL of a 2D homogeneous PPP to Φ x , and (c) is obtained by first replacing X K 2 + x with X K 2 z in the integral and replacing X K 2 with D K . Also, the integral in (A.6) can be simplified as shown in the following: by following the derivation techniques in the proof of Proposition 1 in [27] and using the definition of I W (x, y) in (24). Thus, we finally get the result in (23) owing to D K ∼ Gamma(K, πλ).…”

Section: Proof Of Theoremmentioning

confidence: 97%

See 1 more Smart Citation

A 3D Tractable Model for UAV-Enabled Cellular Networks With Multiple Antennas

Liu

Liang

Syed

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

This paper aims to propose a three-dimensional (3D) point process model that can be employed to generally deploy unmanned aerial vehicles (UAVs) in a large-scale cellular network and tractably analyze the fundamental network-wide performances of the network. The proposed 3D point process is devised based on a 2D homogeneous marked Poisson point process (PPP) in which each point and its random mark uniquely correspond to the projection and the altitude of each point in the 3D point process, respectively. We study some of the important statistical properties of the proposed 3D point process and shed light on some crucial insights into these properties that facilitate the analyses of a UAV-enabled cellular network wherein all the UAVs equipped with multiple antennas are deployed by the proposed 3D point process to serve as aerial base stations. The salient features of the proposed 3D point process lie in its suitability in practical 3D channel modeling and tractability in analysis. The downlink coverage performances of the UAV-enabled cellular network are analyzed and found in neat expressions and their closed-form results for some special cases are also derived. Most importantly, their fundamental limits achieved by cell-free massive antenna array are characterized when coordinating all the UAVs to jointly perform non-coherent downlink transmission. Finally, numerical results are provided to validate some of the key findings in this paper.

show abstract

Section: Proof Of Theoremmentioning

confidence: 97%

“…which cannot be further found in closed form if α = 4, yet it can be evaluated by numerical techniques. For α = 4, the closed-form expression of f T 0 (z) can be found as [24] [26]…”

Section: B Laplace Transforms Of the 3d Shot Signal Processes In φ Umentioning

confidence: 99%

A 3D Tractable Model for UAV-Enabled Cellular Networks With Multiple Antennas

Liu

Liang

Syed

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…A recent work explored the full-duplex HetNet with decoupled access [21] where the authors provided an analysis of the average link rate performance and proposed full-duplex scheduling algorithms to maximize the bidirectional traffic. In [22], the authors formulated the association problem of a full-duplex HetNet with decoupled access as a convex geometric programming problem to maximize sum-rate.…”

Section: Related Workmentioning

confidence: 99%

Full-Duplex Two-Tier Heterogeneous Network With Decoupled Access: Cell Association, Coverage, and Spectral Efficiency Analysis

et al. 2020

View full text Add to dashboard Cite

The ever increasing thirst for the higher capacity demands radical changes in the design of cellular networks, such as a leap from single-tier homogeneous networks to multi-tier heterogeneous networks and the use of millimeter wave frequency band. A typical point-to-point full-duplex transmission link can double the link rate by simultaneously using the same spectrum for bidirectional traffic. However, the characterization of full-duplex two-tier heterogeneous networks is not as straightforward as that of point-to-point full-duplex systems, specially when the different tiers of the heterogeneous network use different frequency bands (millimeter wave and microwave) for their transmissions. This paper characterizes a full-duplex two-tier heterogeneous network with decoupled access, where both tiers operate on different frequency bands (millimeter wave and microwave). To evaluate the achievable spectral efficiency and association behavior of users and base stations, a two-tier heterogeneous network model is proposed in which all users and base stations are modeled using Poisson point processes. First a signal-to-interferenceplus-noise-ratio optimal user association scheme is characterized. Based on the user association scheme, the spectral efficiencies of the uplink and downlink transmission links are derived. In addition, a thorough analysis of the signal-to-interference-plus-noise-ratio coverage is also provided. Moreover to render the analytical model more comprehensive and robust, i.e., different from the convention of noise-limited millimeter wave network, the interference in millimeter wave networks is also accounted for in the analytical model. Lastly, the pragmatic value of full-duplex heterogeneous networks and decoupled access is discussed in detail through numerous numerical and simulation results. INDEX TERMS Decoupled access, full-duplex transmission, heterogeneous network, millimeter wave.

show abstract

“…The work [16] contributed to DUDA optimization under the case where the full-duplex small cells were deployed. In [17] and [18] authors developed a comprehensive framework to evaluate the usefulness of DUDA in full-duplex HetNets.…”

Section: A Related Workmentioning

confidence: 99%

Cross-Tier Dual-Connectivity Designs of Three-Tier Hetnets With Decoupled Uplink/Downlink and Global Coverage Performance Evaluation

Jia

Fan

et al. 2019

IEEE Access

View full text Add to dashboard Cite

In the conventionally coupled uplink (UL) and downlink (DL) association (CUDA) scheme, the UL performance is limited greatly by the DL parameters such as the density and power of base stations (BSs). To overcome this issue, this paper focuses on a novel three-tier heterogeneous network (HetNet) as well as global performance evaluation, where the cross-tier dual-connectivity (DC) and decoupled UL and DL association (DUDA) are integrated. On one hand, with the cross-tier DC, in DL or UL, typical user equipment is associated simultaneously with the primary and secondary BSs that are located at different tiers. On the other hand, with DUDA the primary and secondary access points of UL and DL are not necessarily the same. The proposed cross-tier DC scheme meets the need of the next generation networks where control channel comes from Macro BS and data channels from small cell BSs. For such HetNets, the work first presents a comprehensive investigation of the cross-tier DC design of all possible DUDA modes and the corresponding association conditions. Second, by simplifying the association conditions the work gives the comprehensive derivations in terms of the association probabilities and the statistical descriptions of the primary and secondary UL access distances. Third, by using the method from stochastic geometry this paper derives the general form of UL coverage probabilities by creating a common model of DUDA designs so that the global UL average coverage probability (ACP) of the whole network is achieved. The presented numerical and simulated analysis first validates the derivations. Then, the analysis focuses on the global UL ACP comparison of the whole HetNet between the DUDA and CUDA designs. The comparison of global ACP shows that the ACP of DUDA design is higher than the one of the CUDA design. Although the powers and densities of BSs impose the outstanding impact on the ACP of the CUDA designs, they have a very limited effect on one of the DUDA designs due to the utilization of decoupling association. INDEX TERMS Heterogeneous networks, decoupling association, dual-connectivity, cross-tier access.

show abstract

Full-Duplex Heterogeneous Networks With Decoupled User Association: Rate Analysis and Traffic Scheduling

Cited by 16 publications

References 37 publications

A 3D Tractable Model for UAV-Enabled Cellular Networks With Multiple Antennas

A 3D Tractable Model for UAV-Enabled Cellular Networks With Multiple Antennas

Full-Duplex Two-Tier Heterogeneous Network With Decoupled Access: Cell Association, Coverage, and Spectral Efficiency Analysis

Cross-Tier Dual-Connectivity Designs of Three-Tier Hetnets With Decoupled Uplink/Downlink and Global Coverage Performance Evaluation

Contact Info

Product

Resources

About