Invention Grant
US08050188B2 Redundant message packet suppression for in-vehicle ad hoc network
有权
用于车载ad hoc网络的冗余消息包抑制
- Patent Title: Redundant message packet suppression for in-vehicle ad hoc network
- Patent Title (中): 用于车载ad hoc网络的冗余消息包抑制
-
Application No.: US12147547Application Date: 2008-06-27
-
Publication No.: US08050188B2Publication Date: 2011-11-01
- Inventor: Fan Bai , Upali Priyantha Mudalige
- Applicant: Fan Bai , Upali Priyantha Mudalige
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Main IPC: H04L12/56
- IPC: H04L12/56 ; H04J1/16

Abstract:
A method is provided for suppressing redundant packet message transmissions a multi-hop message delivery system. The vehicle receives message packets from any one of a plurality of vehicles within a broadcast range of the vehicle. The vehicle includes a buffer for holding the received message packets prior to re-broadcasting the message packets. A first estimation value is calculated as a function of a signal strength of the vehicle receiver for a respective received message packet. A second estimation value is calculated as a function of the buffer. A re-broadcast estimation threshold value is determined as a function of the first estimation value and the second estimation value. At least one triggering function is provided for generating an at least one triggering indicator. The respective message packet is re-broadcast in response to the re-broadcast estimation threshold value satisfying the at least one triggering indicator.
Public/Granted literature
- US20090323579A1 Redundant message packet suppression for in-vehicle ad hoc network Public/Granted day:2009-12-31
Information query