D2D Resource Allocation via Interference Thresholds
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication networks face challenges in efficiently allocating resources for device-to-device (D2D) communication, leading to interference issues and suboptimal use of limited resources, as existing methods do not effectively manage interference thresholds to allow for simultaneous D2D and cellular communications.
Innovation Solution
A method is introduced to allocate wireless communication resources to D2D pairs by determining access-point and receiving-device interference thresholds, comparing these with measured signal powers, and assigning resources based on acceptable interference levels to ensure interference remains within designated ranges, allowing for efficient reuse of resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless communication resources are allocated for D2D communication, then resource utilization improves, but interference with cellular communication increases
Solution Approach 1:
The system dynamically adjusts the transmit power of D2D signals as a controllable parameter to balance resource utilization and interference. By changing the power level based on measured interference conditions, the system can allocate resources for D2D communication while maintaining acceptable interference thresholds for cellular communication.
Solution Approach 2:
The system implements a feedback mechanism where the access point measures the received power of D2D signals and uses this information to control resource allocation and power levels. This closed-loop approach ensures that D2D communication can proceed while keeping interference to cellular communication within acceptable limits.
2Ease of operation
If D2D communication is allowed without interference management, then ease of operation improves, but signal quality deteriorates
Solution Approach 1:
The system enables D2D devices to autonomously measure the received power of signals and determine whether interference thresholds are exceeded. This self-service approach allows devices to independently assess signal quality conditions without complex centralized control, maintaining ease of operation while ensuring reliable communication through threshold-based decisions.
3Reliability
If interference thresholds are strictly enforced, then signal quality is maintained, but resource allocation flexibility decreases
Solution Approach 1:
The system dynamically adjusts resource allocation based on real-time interference conditions rather than enforcing static threshold rules. The access point can adaptively decide whether to allow D2D communication on specific resources by measuring actual received power levels, providing flexibility while maintaining signal quality when necessary.
Data Source
AI summary
A method of allocating a wireless communication resource to a device-to-device (D2D) pair of wireless devices may include determining an access-point interference threshold of an access point of a wireless communication network. The method may further include determining a device-to-device (D2D) signal power of a D2D signal at the access point. The D2D signal may be associated with D2D communications between a D2D pair of wireless devices. The method may also include assigning a wireless communication resource to the D2D pair based on a comparison of the access-point interference threshold with an access-point interference value where the access-point interference value is based on the determined D2D signal power at the access point.