Energy efficient incentive resource allocation in D2D cooperative communications

Abstract

Device-to-device (D2D) cooperation can improve both the system performance and Quality of Services (QoS) of users with bad channel qualities. However, cooperation consumes valuable power of a terminal to help others and thus is not preferred by the terminal. So it is important to design schemes to stimulate selfish terminals to cooperate. Defining energy efficiency as incentive parameters, this paper proposes a novel resource allocation scheme to encourage users to relay data for others with the reward of transmitting resource including time and power. Since the optimal algorithm is highly complicated, the proposed energy efficient incentive resource allocation scheme is a suboptimal solution which is composed of three steps. Firstly, D2D relay users are selected for others in bad channel condition. Secondly, the two-user case resource allocation problem is formulated to simplify the original problem in cellular networks. Finally, a two-dimensional search method is designed to solve the two-user case problem based on monotonicity analysis. Simulation results demonstrate that the proposed scheme can stimulate users to implement D2D relay to achieve better performance in energy efficiency and throughput. It is also shown that the performance of the proposed scheme is close to that of the optimal one.

Spectral Efficient and Energy Aware Clustering in Cellular Networks

“…Fig. 3 also includes as baseline the algorithm proposed in [18], which is labelled as CS. As CS is a scheme based on the received SNR to allow or ban cooperation (among other aspects), results for two minimum SNR thresholds have been simulated: 4.73 dB and 2.84 dB.…”

Flexible Wi-Fi Communication among Mobile Robots in Indoor Industrial Environments

“…Recently, device-to-device communication is being discussed as part of the 5G research. Current research mainly focuses on peer discovery [14,15], resource allocation [16,17], and power control [18]. Even though some of the concepts of D2D communication in 5G networks can be applied to use cases currently considering network technologies such as IEEE 802.11, there is still work to be done with respect to dynamic switching between operational modes, IP-based routing in such mixed networks, and multihop relaying support.…”

Matching Based Two-Timescale Resource Allocation for Cooperative D2D Communication

“…However, the results in the above works [26]- [29] are conducted under given user pairs, while the design of the CU-D2D paring process is ignored. The pairing problem for multiple D2D pairs and CUs is investigated in [20], [21], [30], [31]. In [30], a coalition formation algorithm is designed to solve the spectrum management problem.…”

“…In our previous work [31], a matching-based resource allocation scheme is proposed to determine the pairing and spectrum allocation. Sun et al in [20] propose an energy efficient incentive resource allocation scheme to encourage users to relay data for others with the transmitting resource including time and power as reward. Similarly, the weighted sum energy efficiency of D2D pairs is maximized via a joint D2D relay selection, bandwidth and power allocation in [21].…”

“…However, most works [20], [21], [26]- [31] handle the pairing process between multiple CUs and multiple D2D pairs at a shot timescale (e.g. at LTE scheduling time interval of 1ms), in which pair switching may incur heavy signaling overhead, and thus are not practical in large-scale network.…”