M. Methfessel, H. Frankenfeldt, K.F. Dombrowski, and R. Kraemer (Germany)
TCP, wireless link errors, mobile devices.
The performance of handheld mobile terminals is critical
for future wireless Internet applications. Previous
suggestions to improve the performance generally modify
the TCP or link-layer protocols. In contrast, we choose a
framework which restricts all modifications to the mobile
device in order to permit easy deployment. For the uplink
from the mobile to the base station, previously discussed
adaptive link-layer methods can be used, which work by
adjusting the transmission parameters to the channel
quality. For the downlink, new complementary ideas are
needed, for which two examples are presented in this
paper. The results show that optimization restricted to the
mobile terminal is an effective strategy to save power and
improve data transmission in a wireless LAN.