reading on "ExOR: Opportunistic Multi-Hop Routing for Wireless Networks"

Summary: this paper presents ExOR which basically lets one node to send packets to several nodes and then chooses one of these nodes continues to send to several nodes till the packets reach the destination.  There are several challenges in ExOR. Authors built a packet format to solve these challenges. Through experiments on Roofnet, ExOR makes a big improvement on throughput than traditional routing scheme.

Background: ETX

Discussion:

this is a good paper and really smart idea. 

1, is ExOR really practical? 

2, i do think there are too much stuff in the ExOR packet header. Is it a good solution to augment the packet header?