Wireless Multimedia Sensor Networks: Current Trends and Future Directions

''For the network layer, with the new characteristics of UWB such as low power transmission and low

accurate ranging capabilities, the addressing and location-aware routing protocols can be optimized for

better performance and they can get rid from the overhead caused by traditional flooding technique for

routing and IPv6 scheme for addressing. Also UWB properties, especially the positioning capabilities,

can be exploited to simplify the hardware used in location-aware routing instead of using of GPS enabled

devices. It is pointed in [

16] that UWB characteristics should be taken in account in the MAC layer for

channel access, scheduling, and error control wherein the low duty cycle and low power transmission

reduce the probability of collisions between pulses and interference. TH-IR-UWB system could be

used, for example, for simultaneous transmissions based on the adoption of different time hopping code

on each active link; and the rich resolvable multipath components of IR-UWB could be exploited, for

example, at the receiver side for multipath diversity and channel estimation.''

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