Need help with #7 please! 5. The channel bandwidth in LTE is different from the
ID: 3871963 • Letter: N
Question
Need help with #7 please!
5. The channel bandwidth in LTE is different from the bandwidth occupied by the resource blocks. For each specified channel bandwidth, compute the fraction 6. Differentiate between a basic service set and an extended service set in IEEE 7. In Bluetooth, what differentiates a master device from a slave device? Can a occupied by the physical resource blocks. Comment on the efficiency 802.11. device be a slave in two piconets? Can a device be a master in two piconets? 8. Draw a diagram showing the sequence of UWB pulses transmitted using PPM for 9, Plot the UWB pulse v(t) given by the following equation for A = 1 and = the sequence 00101101. 0.25,0.5,1. Use Matlab or R. Show the three pulse shapes on the same plot and identify the values of . What do you conclude from the plot?Explanation / Answer
Hi,
In bluetooth, first at the time of connection, whichever device initiates the connection, that is always the master.
But, changes can happen once the conncetion is made, you can understand this with an example, imagine a bluetooth keyboard, since it is the one that initiates the connection, keyboard is the master at connection time, but when the conenction is established, the role is changed to slave, since computer control the keyboard
b.Firstly, you have to understand there are 2 types of piconets Single slave piconet, Multi slave piconet and scatternet (a group of piconets)
now, in case of single slave piconet, there is only one master and one slave- hence not possible here
Multi slave piconet- each master can have multiple slaves- hence possible here
Now, scatternet has group of piconets where a node can be master in one piconet and slave in other, therefore a device can be a slave in more than one piconets and a device can be a master in more than one piconets,
this architecture is mainly done to efficiently use the maximum available bluetooth channel bandwidth
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