Protocol Adaptation Layer Multicast Management for Wireless Networks
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Solution Overview
Problem
Current wireless communication technologies face challenges in efficiently managing multicast transmission over wireless networks, particularly in maintaining group membership and handling bandwidth-heavy data transmission across lossy channels without the need for complex multicast tree structures.
Innovation Solution
A protocol adaptation layer (PAL) based multicast management protocol is implemented, which includes procedures for formation, maintenance, and termination of multicast groups, utilizing multicast MAC addresses and control messages to manage wireless communication between source and destination stations, enabling efficient high-throughput transmission even in lossy channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multicast tree structures are used for multicast transmission, then transmission reliability is improved, but device complexity and protocol overhead increase significantly
Solution Approach 1:
The patent extracts the complex multicast tree construction and maintenance functions from the wireless communication protocol stack. Instead of implementing full multicast tree structures with complex routing protocols, the invention removes these unnecessary components and retains only the essential multicast transmission capability through simple group address assignment and direct transmission to group members.
Solution Approach 2:
The patent segments the multicast functionality into essential and non-essential parts. The essential part is the basic multicast transmission capability using group addresses, while the non-essential complex tree construction and maintenance functions are removed. This segmentation allows the system to achieve multicast transmission with minimal protocol overhead.
2Reliability
If complex multicast management protocols are implemented, then multicast transmission reliability is improved, but processing time and energy consumption increase
Solution Approach 1:
The patent removes complex multicast management protocols including tree construction algorithms, membership management procedures, and error recovery mechanisms. Only the essential multicast transmission function is retained, which significantly reduces processing time while maintaining basic transmission reliability through simple group address-based delivery.
3Area of stationary object
If multicast tree structures are deployed across routers, then transmission coverage is improved, but system complexity and interoperability difficulties increase
Solution Approach 1:
The patent extracts the multicast transmission capability from complex router-based tree structures and implements it directly at the wireless communication layer. This approach maintains transmission coverage by allowing direct communication between source and destination stations while removing the intermediate complex routing infrastructure.
4Ease of manufacture
If existing wireless communication standards are used without adaptation, then implementation simplicity is maintained, but adaptability to different network configurations and bandwidth requirements is reduced
Solution Approach 1:
The patent introduces a Protocol Adaptation Layer (PAL) as an intermediary between the existing wireless communication standards and the application layer requirements. This PAL provides multicast transmission adaptability by handling group address assignment and management, while the underlying physical layer continues to use standard wireless protocols, thus maintaining implementation simplicity while gaining network adaptability.
Data Source
AI summary
A method and system may include a source station to provide wireless multicast transmission to a plurality of destination stations according to a protocol adaptation layer multicast management protocol. The protocol adaptation layer may lie above the MAC layer. The multicast management protocol includes formation, maintenance, and termination procedures. Other embodiments are described and claimed.