Mobile and Wireless Communication (AICTE - January- 2023)































 







 





































 





 







 















 



 

 











 









 



 











 



 



 



















 



 















 





 

 

⁽¹⁰⁾ 







^.1

(10 x 1 = 10 Marks)



 ⁽¹⁾

   









⁽²⁰⁰⁾

 



      







       

⁽⁴⁾

 



 



 



   

⁽⁷⁾ 



 ^.2

(4 x 5 = 20 Marks)





 

⁽⁵⁾ 

   









(500)

  



      







       

⁽³⁾

 



 



 



   

⁽⁵⁾ 

 

 ^.3

(3 x 10 = 30 Marks)





 

⁽¹⁰⁾

   







 











1

  



 



 

 

^3G

      

^i.

(Multi-megabit internet access / LTE based network)

  

---

                      

^ii.

(Handoff / Roamer )

---

  

^{MIMO .iii}

(Many input many output / Multiple input multiple output)





 

---

  

^.iv

(Hexagon / circle)

 





 

 

Adjacent Channel Interference

       

^.v

(Cross Talk / Near-Far Effect)





 

 

Free Space Propagation

         

^.vi



 



 

 

 



 



Diploma in Engineering

V Semester Exams: AICTE - January- 2023

DPEL512PCT- Mobile and Wireless Communication

Total Time : 3 hrs Total Marks :60

P.T.O. 1/2









 

 





Electromagnetic Wave



High Frequency Current .vii

  

---

 

---

 

^{AMPS .viii}

 

Application

    

--- LAN

  

^.ix

 



 

---

             

^Energy



^Source

         

_.x

Isotropic source/ anisotropic source



 





 

 

 

Wireless Communication .2

 







 

Cellular Concept .3

           

^Hexagonal



^Cell

    

^.4

                    

^.5

            

^.6

       

Diploe Antenna .7

     

^{CDMA .8}



 



















 



 

 

 





 

^.9

 







 

Architecture

 

^{GSM .10}

            

^.11

co-channel interference (ii) Cluster ⁽ⁱ⁾

 

 







 

 



 

 

^.12

Vehicular Adhoc Network (3) RFID (2) ZIGBEE (1)



 

 







 



 

 

 

 

^{MIMO .13}







2/2