Neighbor Node Selection in Wireless Multi-Hop Networks
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Solution Overview
Problem
Current wireless multi-hop networks face challenges in efficiently selecting neighbor nodes for handover and cell selection procedures due to the lack of consideration for operating modes, leading to suboptimal performance and increased latency.
Innovation Solution
The implementation of a method where nodes in a wireless multi-hop network receive and transmit cost parameters indicating the operating mode costs of neighbor nodes, allowing for informed decisions during handover and cell selection procedures, thereby optimizing node selection based on energy consumption, power status, and hop count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional neighbor node selection methods are used without considering operating modes, then the selection process is simple and fast, but the network performance is suboptimal and latency increases
Solution Approach 1:
The patent applies preliminary action by having neighbor nodes pre-calculate and report cost parameters before handover decisions are made. The cost parameter is determined in advance based on operating mode, energy consumption, power status, and hop count, allowing the serving node to make informed decisions without complex real-time calculations
Solution Approach 2:
The cost parameter acts as an intermediary that translates complex operating mode information into a single comparable metric. This intermediary value enables the serving node to evaluate multiple neighbor nodes efficiently without directly analyzing all their operational characteristics
2Use of energy by moving object
If nodes select neighbor nodes without cost parameter information, then the selection process is quick, but energy consumption is inefficient and latency increases
Solution Approach 1:
The patent implements feedback by having neighbor nodes report their cost parameters to the serving node, which then uses this information to make handover decisions. The cost parameter feedback loop enables the network to adapt to changing energy conditions and operating modes, selecting targets that minimize energy consumption while maintaining acceptable latency
Solution Approach 2:
Energy efficiency is improved through preliminary action by pre-determining cost parameters that reflect current energy consumption patterns. This allows the serving node to anticipate energy costs before handover, selecting neighbor nodes that will minimize future energy usage rather than reacting to energy conditions after handover occurs
3Reliability
If comprehensive operating mode information is considered in node selection, then network robustness improves, but the complexity of the selection process increases
Solution Approach 1:
The patent applies parameter changes by transforming multiple operating mode characteristics (energy consumption, power status, hop count) into a single cost parameter. This parameter transformation maintains network robustness by considering comprehensive operating mode information while simplifying the selection process through a unified metric that can be easily compared across neighbor nodes
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a child node in a wireless multi-hop network may receive a cost parameter from a neighbor node in the wireless multi-hop network, wherein the cost parameter indicates a cost, due to an operating mode of the neighbor node, of selecting the neighbor node as a target node for a handover procedure, a cell selection procedure, or a cell reselection procedure. The child node may perform the handover procedure, the cell selection procedure, or the cell reselection procedure based at least in part on the cost parameter. Numerous other aspects are provided.