A Bidirectional Routing Abstraction for
Asymmetric Mobile Ad Hoc Networks.
IEEE/ACM TRANSACTIONS ON NETWORKING, VOL. 16, NO. 1,
Wireless links are often asymmetric due to heterogeneity
the transmission power of devices, non
and other signal propagation phenomenons. Unfortunately,
routing protocols for mobile ad hoc networks typically
well only in bidirectional networks. This paper first presents
tion study quantifying the impact of asymmetric links on
connectivity and routing performance. It then presents a
called BRA that provides a bidirectional abstraction of
asymmetric network to routing protocols. BRA works by
reverse routes for unidirectional links and provides
new abilities: improved connectivity by taking advantage
the unidirectional links, reverse route forwarding of contro
to enable off
shelf routing protocols, and detection
loss on unidirectional links. Extensive simulations of AODV
on BRA show that packet delivery increases substantially
fold in some instances) in asymmetric networks compa
AODV, which only routes on bidirectional links.
Ad hoc network, asymmetry, routing, unidirectional
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Here the system will take care of the scheduling of data packets
between the source and destination computers.
Job scheduling to route the packets at all the ports in the router.
Maintaining queue of data packets and scheduling algorithm
FCFS scheduling and BRA scheduling is called for source and
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