Can 802.11b/g and Bluetooth coexist in the same environment?
Bluetooth and 802.11b/g share the same spectral band (2.4GHz). Therefore, cross-interference will be inevitable. The result can be a reduction in throughput. In general, Bluetooth devices are less susceptible to coexistence problems for the following reasons: – Bluetooth is a Frequency Hopping Spread Spectrum technology (FHSS) which means that if a channel is busy, Bluetooth will immediately hop to a different channel to transmit the packet of information. 802.11b/g is a Direct Sequence Spread Spectrum (DSSS) technology. – Shorter packets—Bluetooth packets are typically a fraction of a millisecond long compared with a few milliseconds for 802.11b/g. This reduces their collision susceptibility. – Bluetooth is less considerate. An 802.11b/g station first waits for silence and only then transmits. Bluetooth, in the other hand, is inconsiderate of surrounding transmissions—it simply “barges in” whenever it has something to transmit. In summary, these technologies can coexist. In fact, both
