Bio-Inspired Resource Allocation for Relay-Aided Device-to-Device Communications

Abstract

The Device-to-Device (D2D) communication principle is a key enabler of direct localized communication between mobile nodes and is expected to propel a plethora of novel multimedia services. However, even though it offers a wide set of capabilities mainly due to the proximity and resource reuse gains, interference must be carefully controlled to maximize the achievable rate for coexisting cellular and D2D users. The scope of this work is to provide an interference-aware realtime resource allocation (RA) framework for relay-aided D2D communications that underlay cellular networks. The main objective is to maximize the overall network throughput by guaranteeing a minimum rate threshold for cellular and D2D links. To this direction, genetic algorithms (GAs) are proven to be powerful and versatile methodologies that account for not only enhanced performance but also reduced computational complexity in emerging wireless networks. Numerical investigations highlight the performance gains compared to baseline RA methods and especially in highly dense scenarios which will be the case in future 5G networks.

Sector-Based Radio Resource Allocation (SBRRA) Algorithm for Better Quality of Service and Experience in Device-to-Device (D2D) Communication

“…This provokes emphasis on the use of sector-partitioned cellular regions. Although existing algorithms have been efficient in management and reduction of interference [35], [36], incorporating sector antennas in unison with these will have a positive impact on the system performance. A comparison of the existing techniques with SBRRA has been given in Table I.…”

Hierarchical power allocation algorithm for D2D‐based cellular networks with heterogeneous statistical quality‐of‐service constraints

“…Therefore, how to allocate wireless resources to obtain better network performance has been a common concern. In [6], Vlachos et al provide a real‐time resource allocation algorithm based on interference aware, and its main purpose is to maximise the overall throughput by guaranteeing a minimum rate threshold for cellular and D2D users. In [7], the radio resource allocation problem is analysed in D2D broadcast scenario within cellular networks and a subcarrier selection algorithm is designed for broadcast users.…”

Graph colour‐based resource allocation for relay‐assisted D2D underlay communications

“…Although relay selection scheme is investigated in [10] [11], the D2D links always operate in RM. The relay selection is considered in [12], and the Genetic Algorithm (GA) is applied to solve this combination problem, which is insufficient to achieve the close-to-optimal performance.…”