Ad Hoc P2P Network Small Packet Transmission Power Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In ad hoc wireless networks without infrastructure, terminals face challenges in establishing communication links due to the lack of a common timing reference, network controller for traffic management, and power efficiency, leading to interference issues among peer-to-peer connections sharing a frequency spectrum.
Innovation Solution
A third device facilitates interference management by determining a signaling format, calculating interference cost, and adjusting transmission power to minimize interference between peer-to-peer connections, using either Gaussian or flash signaling formats to optimize channel resource usage and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed power arrangement is used for simplicity, then device complexity is reduced, but power efficiency deteriorates and signal interference increases
Solution Approach 1:
The patent implements dynamic transmit power adjustment where the third wireless terminal calculates interference cost and dynamically scales its transmit power based on the signaling format (Gaussian or flash) and channel conditions. This replaces the static fixed power arrangement with an adaptive power control mechanism that responds to real-time network conditions, resolving the contradiction between simplicity and power efficiency.
Solution Approach 2:
The patent changes the power parameter dynamically by calculating interference cost as a function of signaling format and adjusting transmit power accordingly. The third terminal modifies its transmit power level based on whether Gaussian or flash signaling is detected, and on the calculated interference cost to other terminals, thereby optimizing power efficiency without excessive complexity.
2Device complexity
If fixed power arrangement is used for simplicity, then device complexity is reduced, but overall throughput deteriorates due to signal interference
Solution Approach 1:
The patent implements dynamic transmit power adjustment where the third wireless terminal calculates interference cost and dynamically scales its transmit power based on the signaling format (Gaussian or flash) and channel conditions. This replaces the static fixed power arrangement with an adaptive power control mechanism that responds to real-time network conditions, resolving the contradiction between simplicity and power efficiency.
Solution Approach 2:
The patent employs feedback mechanisms where the third terminal monitors transmission request responses from other terminals, calculates interference cost based on this feedback, and adjusts its transmit power accordingly. This closed-loop control system enables the network to adapt to interference conditions and optimize overall throughput while maintaining manageable complexity through standardized feedback protocols.
3Reliability
If centralized controller is used for traffic management, then interference management improves, but device complexity and network infrastructure requirements increase
Solution Approach 1:
The patent enables wireless terminals to autonomously perform interference management by calculating interference cost and adjusting their own transmit power based on detected signaling formats and monitored transmission requests. This self-service approach replaces centralized controller functionality with distributed autonomous decision-making at each terminal, improving interference management reliability without adding network infrastructure complexity.
Solution Approach 2:
The patent uses signaling formats (Gaussian or flash) as intermediaries that carry information about transmission intentions and characteristics. By detecting these signaling formats, terminals can infer channel conditions and interference potential without direct communication with a central controller, enabling distributed interference management through indirect information exchange.
4Reliability
If transmit power is increased to overcome distance and channel conditions, then communication reliability improves, but interference to other terminals increases
Solution Approach 1:
The patent changes the power parameter dynamically by calculating interference cost as a function of signaling format and adjusting transmit power accordingly. The third terminal modifies its transmit power level based on whether Gaussian or flash signaling is detected, and on the calculated interference cost to other terminals, thereby optimizing power efficiency without excessive complexity.
Solution Approach 2:
The patent applies different transmit power levels locally to different transmission scenarios based on the detected signaling format and calculated interference cost. Rather than using a uniform power level, each terminal adjusts its power locally according to specific channel conditions and interference considerations, optimizing communication reliability while minimizing harmful interference to other terminals in different locations.
Data Source
AI summary
An improved mechanism is provided that facilitates transmission of small packets within an ad hoc peer-to-peer network. A small packet is identified to a receiver within a control channel so that its lower power can be considered in an interference management protocol implemented among local peer devices. In a traffic slot, a transmitter voluntarily backs down on the transmitter power as a smaller packet will require much lower signal-to-noise ratio. This will improve the signal energy per bit per noise power density for the transmission as well as minimize the interference caused to other wireless communications happening in the same spectrum.