Which technique is not supported in an OFDMA scheme?
TDMA
BPSK
FDMA
all are supported in an OFDMA scheme
CSMA
Which technique is not supported in an OFDMA scheme? TDMA BPSK FDMA all are supported in...
6- Explain (with drawing] why the spectrum efficiency of OFDMA is twice as FDMA. [10 pts) 7. Which of the following features is not considered as an advantage of CDMA: (5 pts) a) flexible number of users b) dynamic bitrate c) no need for power control d) additional security
What concept do things like PSK or QAM fall under and what concept do things like CDMA, OFDMA fall under.....is one a modulation format and the other a modulation scheme or modulation technique? how are the overarching concepts of both groups related. I understand them separately but i get them confused, at to how they are related. Group1(PSK,QAM) and Group2(CDMA, OFDMA)
Question 27 (1 point) Which of the following is not correct for Frequency Division Multiple Access FDMA? Each FDMA user is assigned a sub-channel If the number of users is less than the number of sub-channels, spectrum resource is wasted OFDMA requires synchronization OFDMA requires guard bands Multiple Selection Question 28 (2 points) Select correct statements about CSMA/CA Frame size must be 2 minimum size, which is a property of the network Before transmitting a frame, a station need make...
____________ technique is used to construct a network in which all points are connected and the distance between them is as short as possible. 1. shortest-route 2. maximal-flow 3. minimal-flow 4. minimal-spanning tree
please answer all 1.The seperation scheme is incorrect. identify each mistake and explain why it is wrong. 2.Draw a corrected seperation scheme using the molecules from the picture above.Indicate the phase and seperation technique for each step.Use any of the reagents listed below to isolate the compounds. thank you! Incorrect Separation Scheme NaCl Н-N ether, 10% NaOH ether aq NaCl H2N Он evap. ether 10% HCI aq ether NaCl NaOH H2N 10% aqueous NaOH 5% aqueous NaHCO 6М HI Н-О...
Which of the following statements is (are) the most correct? A. Sensitivity study is a technique in which key variables are changed one at a time. B. Scenario study is a technique in which “bad” and “good” sets of financial circumstances are compared with a most likely situation. C. Monte Carlo Simulation is a technique in which probable future events are simulated on a computer. D. Breakeven is a technique to determine the level of sales at which a project...
Which of the following are CDS challenges? (select all that apply) Not supported by national healthcare organizations Interoperability Labor intensive Lack of long term proven benefit
Which technique could be used for molecular weight determinations in proteins under all circumstances? a.) gel filtration b.) isoelectric focusing c.) carboxymethyl (CM) cellulose chromatography d.) a and e e.) SDS-PAGE
Use extended hashing technique to insert the employees in which their corresponding binary Empl_IDs are shown below. Assume you can have two employees per block. Show the depth of both global and local directories. The bits should be considered from left to right as shown in the lecture.. 00001, 10000, 10100, 00111, 11011, 11101, 10010, 01111, 10101 Use extended hashing technique to insert the employees in which their corresponding binary Empl_IDs are shown below. Assume you can have two employees...
Which technique would you use if you wanted to < Identify all the regions of open chromatin in a particular cell type? Perform a paternity test? Amplify a specific sequence of DNA? [Choose] [Choose] Promoter fusion DNAse-seq Scanning mutagenesis Western blot RNAseq DNA fingerprinting Northern blot Reporter Assay DNAse footprinting ChIP-PCR EMSA Southern blot DNAse protection assay PCR BLAST search Protein fusion ChIP-seq [Choose Compare the global level of RNA expression between two samples? Detect presence of a specific protein...