Coupon-Based Consensus Mechanism for Distributed Systems
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Solution Overview
Problem
Existing consensus mechanisms in distributed systems, such as blockchains, are complex, resource-intensive, energy-inefficient, and face issues like high latency, low throughput, and fairness/centralization concerns, making them unsuitable for constrained devices and high-speed leader election in peer-to-peer networks.
Innovation Solution
A lightweight consensus mechanism using 'Proof-of-Match-Adaptive' (PoMA) with coupon-based leader election, employing Process Execution Time Synchronization (PETS) and Single Queue (SQ) processors, which generate and forward software coupons for parallel leader election and sequential processing, optimizing network throughput and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing consensus mechanisms (Paxos, Raft, PoW, PoS, PBFT) are used, then consensus can be achieved in distributed systems, but the system becomes complex and resource-intensive
Solution Approach 1:
The patent extracts the core consensus function from complex existing mechanisms and implements it through a simplified coupon-based approach. Nodes generate coupons with unique identifiers and forward them through the network; the node that receives both L and R coupons with matching identifiers first becomes the leader. This extracts the essential leader election function while removing unnecessary complexity from protocols like PBFT or PoW.
Solution Approach 2:
The patent uses coupon copying as a lightweight alternative to complex consensus protocols. Instead of requiring nodes to run heavy cryptographic proofs or maintain complex state machines, nodes simply copy and forward coupon messages through the network. The L and R coupons are copied across multiple hops until a match is found, providing a simple yet effective consensus mechanism.
2Productivity
If existing consensus mechanisms are deployed, then leader election can be performed, but energy consumption increases and throughput decreases
Solution Approach 1:
The patent employs disposable coupons as lightweight, short-lived messages that are generated, forwarded, and discarded. Each coupon contains minimal information (identifier, type L or R, and routing data) and is used once for leader election purposes. This disposable approach avoids the energy-intensive operations of PoW mining or the sustained resource consumption of PoS staking, enabling fast leader election with minimal energy expenditure.
3Loss of time
If traditional consensus algorithms are used, then decisions can be made in the network, but latency increases and fairness concerns arise
Solution Approach 1:
The patent implements preliminary action by having nodes pre-generate L and R coupons with unique identifiers before the leader election process begins. These coupons are placed in buffers and forwarded asynchronously through the network using random walk patterns. This preliminary preparation eliminates the need for synchronized rounds or iterative voting, reducing latency while maintaining fairness through the random nature of coupon propagation.
Data Source
AI summary
The embodiments herein provide a fair, high speed and lightweight consensus mechanism for leader election in distributed systems using coupons. The consensus mechanism uses a leader election mechanism that is randomized in twin dimensions of space and time using the concept of a colliding random walk. A source node is enabled to generate left and right coupons in a quantum resistant manner for random walks. Two novel coupon processing mechanisms called Process Execution Time Synchronization (PETS) mechanism and Single Queue (SQ) mechanism are used to process the coupons and find matches. The use of PETS optimizes memory and time requirements while SQ is extremely fast and efficient to handle large volumes of coupons. Also, the coupon forwarding to neighbouring nodes is performed based on three algorithms namely Uniform, Delay and Adaptive Delay forward. These forwarding algorithms effect high fairness even in case of open networks.