scholarly journals Cooperative interference cancellation using device-to-device communications

2014 ◽  
Vol 52 (6) ◽  
pp. 118-124 ◽  
Author(s):  
Ralph Tanbourgi ◽  
Holger Jakel ◽  
Friedrich Jondral
Keyword(s):  
Interference Cancellation ◽  
Device To Device

scholarly journals Exploiting non-orthogonal multiple access in device-to-device communication

2021 ◽  
Vol 22 (2) ◽  
pp. 919
Author(s):  
Sang Hoon Lee ◽  
Soo Young Shin
Keyword(s):  
Closed Form ◽  
Interference Cancellation ◽  
Multiple Access ◽  
D2d Communication ◽  
System Capacity ◽  
Time Sharing ◽  
Sum Capacity ◽  
Closed Form Solutions ◽  
Device To Device ◽  
Device To Device Communication

This paper proposes an uplink non-orthogonal multiple access (NOMA) system with device-to-device (D2D) communication, enabling NOMA users to communicate with other users/devices using D2D communication to improve the system capacity. In the NOMA-D2D system, two cellular users communicated with the BS using uplink NOMA, and two cellular users simultaneously communicated with the D2D users using downlink NOMA. Closed-form solutions for the ergodic sum capacity of the proposed system are derived analytically. The analytical results are validated via simulations and they are compared with the results obtained from conventional schemes. The comparison shows that, in scenarios where efficient interference cancellation can be achieved, the proposed NOMA system with the D2D model can achieve higher capacity gains than conventional benchmark schemes. When  dB, NOMA-D2D achieves capacity gains of 192.2% and 157.5% over the conventional OMA and the time-sharing-based NOMA, respectively.

scholarly journals Two-Stage Interference Cancellation for Device-to-Device Caching Networks

Sensors ◽  
2020 ◽  
Vol 20 (3) ◽  
pp. 780
Author(s):  
Sang-Woon Jeon ◽  
Sung Ho Chae
Keyword(s):  
Interference Cancellation ◽  
Side Information ◽  
Fixed Rate ◽  
Time Rate ◽  
Cache Memories ◽  
Channel Quality ◽  
Device To Device ◽  
Wireless Device ◽  
Iot Devices ◽  
D2d Transmission

Wireless device-to-device (D2D) caching networks are studied, in which n nodes are distributed uniformly at random over the network area. Each node caches M files from the library of size m ≥ M and independently requires a file from the library. Each request will be served by cooperative D2D transmission from other nodes having the requested file in their cache memories. In many practical sensor or Internet of things (IoT) networks, there may exist simple sensor or IoT devices that are not able to perform real-time rate and power control based on the reported channel quality information (CQI). Hence, it is assumed that each node transmits a file with a fixed rate and power so that an outage is inevitable. To improve the outage-based throughput, a cache-enabled interference cancellation (IC) technique is proposed for cooperative D2D file delivery which first performs IC, utilizing cached files at each node as side information, and then performs successive IC of strongly interfering files. Numerical simulations demonstrate that the proposed scheme significantly improves the overall throughput and, furthermore, such gain is universally achievable for various caching placement strategies such as random caching and probabilistic caching.

scholarly journals Interference Cancellation Techniques for Device-to-Device Discovery in Out-of-Coverage Networks

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Raquel A. Martins ◽  
Ivo Sousa ◽  
Maria Paula Queluz ◽  
Antonio Rodrigues
Keyword(s):  
Interference Cancellation ◽  
Device Discovery ◽  
Device To Device

scholarly journals Energy Efficient Power Domain Non-Orthogonal Multiple Access Based Cellular Device-to-Device Communication for 5G Networks

Electronics ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 237 ◽  
Author(s):  
Mohammed S. Al-kahtani ◽  
Lilatul Ferdouse ◽  
Lutful Karim
Keyword(s):  
Energy Efficiency ◽  
Power Allocation ◽  
Interference Cancellation ◽  
Multiple Access ◽  
Power Level ◽  
Resource Block ◽  
Interference Level ◽  
Power Domain ◽  
Device To Device ◽  
Water Filling

This paper examines the resource block and power allocation in the power domain non-orthogonal multiple access (PD-NOMA) based cellular device-to-device (D2D) systems. To improve the energy efficiency of the D2D systems and to manage the mutual interference level as well as the quality of service (QoS) requirement of cellular users, different power level is applied to the D2D users sharing the same resource blocks (RBs) to the legacy users. It is essential to design an efficient resource block and power allocation method for PD-NOMA based cellular D2D systems which guarantee the successive interference cancellation (SIC) order in the power allocation solution. In this paper, we propose an iterative algorithm of resource block and power allocation for cellular D2D system which incorporates the SIC aware geometric water filling (GWF) method in the power allocation solution. It is shown that the proposed SIC aware geometric water filling achieves higher energy efficiency compared to iterative water-filling (IWF) power allocation and the GWF based orthogonal multiple access (OMA) method.

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