Relayed Communication Nodes Using Parallel Medium Allocations
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Solution Overview
Problem
Ad hoc networks face significant challenges with latency, capacity, and robustness due to the need for nodes to take turns relaying information using protocols like CSMA, which limits network performance and increases latency, especially in mobile scenarios with dynamic topology changes.
Innovation Solution
The system employs a relay approach that allows nodes to receive and relay messages on independent medium allocations, combining energy from multiple nodes to enhance message flow and adapt to network topology dynamics, thereby increasing network capacity and robustness while reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If nodes take turns relaying information using CSMA protocol, then network protocol simplicity is maintained, but transmission latency increases and network capacity decreases
Solution Approach 1:
The patent segments the relay process into distinct phases: message reception phase and message relay phase. During reception, multiple nodes can simultaneously receive messages from different transmitters without interference. During relay, nodes transmit relayed messages simultaneously on dedicated channels. This temporal and spatial segmentation eliminates the need for turn-taking while maintaining protocol simplicity.
Solution Approach 2:
The patent introduces a new dimension to the relay process by using multiple communication channels simultaneously. Instead of nodes taking turns on a single channel, the system employs parallel channels for reception and relay operations, allowing concurrent communications. This dimensional expansion resolves the latency issue without increasing protocol complexity.
2Device complexity
If nodes take turns relaying information, then medium access control is simplified, but network capacity is dramatically reduced
Solution Approach 1:
The patent merges multiple communication functions into parallel operations. Multiple nodes simultaneously perform reception and relay functions on different channels, combining what would traditionally be sequential operations. This merging of concurrent operations dramatically increases network capacity while keeping medium access control simple through dedicated channel assignments.
Solution Approach 2:
The patent ensures continuous useful action by allowing nodes to simultaneously receive and relay messages across multiple channels without interruption. The relayed message process continues without the pauses inherent in turn-based protocols, maintaining constant productive activity and significantly improving network capacity.
3Area of stationary object
If relayed communication is used to extend coverage, then network reachability is improved, but transmission latency increases
Solution Approach 1:
The patent implements preliminary action by having intermediate nodes receive and buffer messages before relaying them to destination nodes. This allows the relayed message process to be initiated in advance, and messages are transmitted as soon as relay nodes are ready, minimizing latency while maintaining extended coverage through multi-hop relay.
Solution Approach 2:
The patent employs dynamic channel assignment and adaptive relay selection to optimize transmission paths in real-time. The system dynamically adjusts which nodes relay messages and on which channels based on current network conditions, reducing latency while maintaining extended communication coverage through flexible topology adaptation.
Data Source
AI summary
Systems and methods are presented for conducting a relayed communication involving a source node, a plurality of intermediate nodes, and at least one destination node, involving at the source node transmitting a signal associated with the relayed communication on a first medium allocation, at each one of the plurality of intermediate nodes relaying the signal onto a next medium allocation in response to receiving the signal as transmitted on at least one medium allocation up to a current medium allocation, and at the at least one destination node receiving the signal as transmitted on at least one medium allocation up to a last medium allocation, wherein at least one node among the plurality of intermediate nodes and the at least one destination node receives signals associated with the relayed communication from multiple intermediate nodes as transmitted on at least one medium allocation.