HARQ in Poisson Point Process-Based Heterogeneous Networks

Abstract

Hybrid automatic repeat request (HARQ) plays an important role in improving the transmission efficiency and the robustness of wireless networks. Considering K-tier heterogeneous networks (HetNets) and modelling the locations of the base stations (BSs) as a homogeneous Poisson point process (PPP), this paper investigates the performance of HetNets implementing HARQ. We give closed-form expressions for the quality of service (QoS) coverage probability which is defined in terms of whether the received signal quality is above a predetermined threshold, and the per-user throughput with HARQ. We show that using HARQ can indeed improve the QoS coverage probability. However, depending on the channel conditions, the per-user throughput of the HetNets may decrease by the implementation of HARQ. Furthermore, we show that the small cell density has negligible effect on the QoS coverage probability and the peruser throughput, and the per-user throughput may increase with the small cell path loss.

On the performance of amplifier-aware dense networks: Finite block-length analysis

“…On the other hand, in the cases with α = 4, which is of interest in PPP-based networks [3], [11], we can use some manipulations and (11)- (12) to derive the CDF and the PDF of the received SINR as…”

“…Following [3], [4], there are different works on the performance analysis of dense networks using stochastic geometry, e.g., [5]- [13]. Particularly, the SINR characteristics of M -tier networks [5]- [7], the analysis of optimal power allocation [8], [9], and the implementation of different techniques such as coordinated BS transmission [10], automatic repeat request (ARQ) [11], interference control strategy [12] and multiantenna transmission [13] are considered.…”

On the performance of the Poisson‐point‐process‐based networks with no channel state information feedback

“…As an example, let us consider the repetition time diversity hybrid automatic repeat request (HARQ) scheme with the maximum transmission round M and evaluate the improved coverage probability. Assuming that the fading coefficients remain constant during the packet, we can follow the same procedure as in [28, 29] to rephrase the coverage probability of the HARQ‐based network as . As shown in Fig.…”