Encryption, decryption, and key distribution impose overheads on data throughput, energy consumption, memory space, and computation power.
In contrast, when the handshake is disabled the extra 8 bytes is imposed to the network by only ACK packet which makes the difference between the imposed overhead by the SCP-M model less than the SCP-O model.
We leave this third alternative aside here for space reasons and for the sake of describing a fourth and entirely generic construction, which is based on standard encryption (unlike FHE) and works without interaction over distributed entities (as would be the case for GC [13] and MPC), which imposes overhead by additional network traffic.
Its boss, Martin Sorrell, who was long ago the Saatchis' money man, calculates that his parent company imposes overheads of 1% on its component agencies.
The main problem of CACs is their high imposed overheads to NoC routers.
On the contrary, mice flows are composed by small packets and are usually short lived; their impact on network performance is singularly limited and, moreover, the overhead due to control message exchange can impose an overhead greater than the traffic flow itself.
It seems that these control messages are unlikely to impose serious overhead to the involved domains.
For that, NDN routers perform named-based routing, packet-level caching, and cache look-up, but these operations impose huge overhead on routers.
On the other hand, the figure also shows that the MN-initiated scheme seems do not impose serious overhead in the network.
