Overall Networking Process application layer Application Layer Presentation Layer Correlation-based Session layer Communication Layer Transport Layer end-to-end transfer of message) Network Layer c Transfer of packets across network) 8 Data link layer (Transfer of blocks across a link) Physical layer Physical layer ISO/OSI Reference Model Wireless Ad-Hoc ModelOverall Networking Process ISO/OSI Reference Model Physical Layer Application Layer Wireless Ad-Hoc Model Correlation-based Communication Layer Physical Layer Data Link Layer (Transfer of blocks across a link) Network Layer (Transfer of packets across network) Transport Layer (end-to-end transfer of message) Session Layer Presentation Layer Application Layer Ap plic atio n P r oto c ol T ra n s p o rt P r oto c ol