Efficiency analysis of a K-tier clustered HCN using dual connectivity with DUDe access

Dual Connectivity in Decoupled Aerial HetNets With Reverse Frequency Allocation and Clustered Jamming

“…• In [29], coverage analysis of cellular networks is investigated along with the decoupled access, RFA, and WBJs. Further, in [15], [16], the DC feature for the cellular networks is analyzed. In contrast to these works, we also investigate aerial HetNets.…”

“…In aerial HetNets, SC allows a T-UE to maintain a single DL and UL connection by associating to either one or two UAVs. Whereas, dual connectivity feature allows a T-UE to maintain two connections in both DL and UL with more than one UAV simultaneously to exploit bandwidth and coverage resources [13], [15], [16].…”

“…In DC with DUDe or decoupled access for two-tier aerial HetNets, the first DL connection of a T-UE is established with the UAV of tier 1 on the basis of DRP (i.e., maximum signal strength at a T-UE from the UAV) while, the first UL connection is established on the basis of maximum received signal strength at the UAV of tier 2. Whereas, the second connection is the inverted-decoupled event such that the second UL is established with the UAV of tier 1 and second DL is established with the UAV of tier 2 [15], [17], [18]. This is practically valid for a network with fewer UAVs, so that the UE needs to establish second connection with the other tier's UAV by excluding the one already selected.…”

“…The physical meaning of the associated probability of the T-UEs located in the decoupled-enabled region depicts the probability of the T-UEs that can associate with the LAP in UL, while with the HAP in DL. Since the UEs located in the decoupled-enabled regions provide sub-optimal performance by adopting the SC access [15], [17], [18]. Therefore, in this paper, we focus on the access scheme that optimizes the performance of the UEs located in the decoupled-enabled regions by adopting the DC strategy.…”

“…In DC, the UEs are allowed to maintain more than one connection with the UAVs in uplink (UL) and downlink (DL). In [15], [16], it was shown that the performance of a T-UE improves by employing the DC strategy when comparing with the traditional single connectivity (SC) in terms of the coverage probability. Similarly, in [17], [18], the authors showed that the HetNets-performance is significantly improved in terms of the user-throughput if DC is adopted.…”