Network emulation testbed for DTN applications and protocols

Filling in the missing link between simulation and application in opportunistic networking

“…Several emulation systems for mobile ad hoc networks have been proposed during the last decade. As a general rule, the mobility of network nodes and transmissions on the wireless medium are simulated, and network nodes are either physical nodes ( [19], [20]) or virtual nodes ( [21], [22]), or a mix of both kinds of nodes.…”

Survey of Routing in Delay Tolerant Networks

“…In 2013 Razvan Beuran, Shinsuke Miwa and Yoichi Shinoda [12] presented an emulation testbed intended for DTN application and protocol experiments. Discussed in detail the main changes that were necessary in order to make possible DTN experiments on the QOMB, a generic-purpose wireless network emulation testbed are multi-interface support, fault injection mechanisms, etc.…”

EmuStack: An OpenStack-Based DTN Network Emulation Platform (Extended Version)

“…This outer loop takes advantage of absolute time to control its cycles. As shown in line (13), LOOP CYCLE (loop cycle) is an important parameter for this loop system. The topology and link (1) characteristics are updated every LOOP CYCLE.…”

“…In Algorithm 1, the updating delay determines the LOOP CYCLE parameter presented on line (13). The minimum LOOP CYCLE should be no less than the maximum updating delay; otherwise EmuStack will fails to synchronize.…”

“…The DTN testbed can support about ten nodes experimental topology. Based on the generic-purpose wireless network bench, Beuran designs a testbed named QOMB [13]. QOMB has a good support for emulating a large-scale mobile networks, but it wastes lots of hardware resources since none of virtual computing technology is employed.…”