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Reconsidering Wireless Systems with Multiple Radios Paramvir Bahl, Atul Adya, Jitendra Padhye, Alec Wolman
 

Summary: Reconsidering Wireless Systems with Multiple Radios
Paramvir Bahl, Atul Adya, Jitendra Padhye, Alec Wolman
Microsoft Research, 1 Microsoft Way, Redmond, WA 98052
ABSTRACT
The tremendous popularity of wireless systems in recent years has
led to the commoditization of RF transceivers (radios) whose prices
have fallen dramatically. The lower cost allows us to consider using
two or more radios in the same device. Given this, we argue that
wireless systems that use multiple radios in a collaborative manner
dramatically improve system performance and functionality over
the traditional single radio wireless systems that are popular to-
day. In this context, we revisit some standard problems in wire-
less networking, including energy management, capacity enhance-
ment, mobility management, channel failure recovery, and last-hop
packet scheduling. We show that a systems approach can alleviate
many of the performance and robustness issues prevalent in cur-
rent wireless LAN systems. We explore the implications of the
multi-radio approach on software and hardware design, as well as
on algorithmic and protocol research issues. We identify three key
design guidelines for constructing multi-radio systems and present

  

Source: Adya, Atul - Google Labs
Hunt, Galen - Operating Systems Group, Microsoft Research

 

Collections: Computer Technologies and Information Sciences