https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=9093842
in the link there is an artical, ples. summarize this journal following the summary template that shown on the two photos
The firt article "Wifuence of M2M conmuntcation on LTE Nerworks", Pavel Masek et al stress the fact that LTE networks were designed to folfill the H2H application needs, which are usually broadband spplications. In contrast, M2M applications are namowband applications because they transmit sequences of small packet sizes (temperature, humidity...) as irregular bursts, this incompatibility might bave a considerable impact on the LTE networks. Problem Description: In comparison with H2H communication, the M2M traffic follows some specific traffic patterns: - The amount of data per transmitted packet: Usually, the generated data in the M2M devices are received from sensors (temperature. humidity ...) which send its data in the form of very small packet (several bytes only). - The large number of M2M messages: Because the M2M devices will be widely deployed in all different. fields in the near future, a large number of M2M messages are expected to be sent over LTB networks. If we know that the smallest unit which can be allocated to a UE (user cquipment) is the Physical Resource Block (PRB): each PRB-180 kHz wide in the frequency domain and sub carrier spacing is f=15kHz, We can conclude that a PRB can transmit only several kilobytes of data. N.B: (A PRB consists of the 12 sub carrics and each sub carries has 7 OFDM symbols per 0.5 ms slot). In comparison with the minimal value of data (e.g. value of temperature), the spectral efficiency of the LTE network could decline severely. Research Core: In order to simulate eNodeB's overlonding, two scenarios were designed: 1. First Scenario: What is the maxinum number of user equipments that could be served by the base station In order to simulato eNodeB's overloading, two scenarios were deaigned: 1. First Scenario: What is the maximum number of user equipments that could be served by the base station on an LTB network without overloading the base station, knowing that in 2018 there will be over 10 billion mobile-connected devices on the network? - Simnlation: The sinulation was made using the OPNET modeler for 150,200,250 and 350 end stations. - Resnlts: The maximum number of end stations that could be served-regardless the amount of transmitted data-by a baso station using the LTE network without overloading it is about 250 end stations. - Proposed improvement; by increasing the number of cells/sectors in eNodeB. c.g.i if we increase the number of sectors to 3 , then the maximum number of simultaneously connected end stations will be 675 end stations. 2. Second Scenario: What is the maximum amount of the transmitted data across the LTE network without overloading the base station, knowing that in 2018 the total mobile data traffic through the worid will excoed 10 Exabyies per month? - Simulation: The simulation was made using the OPNET modeler, by considering 100 static end stations that are in range of eNodeB. In simulation time of 100 seconds these end stations start downloading the file ( 100kB) from server. Next 100 mobile end stations are connected to the network in simulation time of 200 seconds and simultaneously with the static end stations try again to download the file from server. - Results: The maximum number of the end stations, which should be allowed to download simultaneously a file sized 100KB from the eNodeB without overloading it is about 180 end stations. - Proposed improvement: by changing the time interval to send the data irregularly rather than sending it during the whole hour
