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| 1 |
ID:
019899
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| Publication |
July 2001.
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| Description |
208-214
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| 2 |
ID:
109765
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| 3 |
ID:
139086
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| Summary/Abstract |
Software-defined radio architecture is the key point of next generation communication systems in which some of the functional units are designed as software on a reconfigurable processor. This paper proposes the physical layer architecture of SDR with modified orthogonal frequency division multiplexing (OFDM). One of the main drawbacks of OFDM is that its high peak-to-average reduction (PAPR) ratio. The PAPR can be reduced using filtering and adaptive peak windowing method with Kaiser window. The adaptive window method finds the positions of maximum peak values using a peak detector in the signal and applies the window function with variable parameter. The radix 2 scalable N point FFT algorithm is used in the system. The mapping of the information signal is done with BPSK, PSK, and 16 QAM modulation. According to the signal-to- noise ratio (SNR) value, the type of modulation can be selected. Decoding of the OFDM signal in the receiver is done with Viterbi decoding algorithm. The communication system simulation is done in MATLAB and the baseband operations are implemented on Xilinx FPGA
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| 4 |
ID:
022364
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| Publication |
Aug 2002.
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| Description |
24-28
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| 5 |
ID:
137867
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| Summary/Abstract |
The single most important lesson to emerge from the recently announced 2015 defence outlay is what comes out each year: there will never be enough money. Hence, instead of carping about lesser funds for increased military threats, it would be wiser to cut the coat according to the cloth.
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| 6 |
ID:
020250
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| Publication |
Autumn 2001.
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| Description |
79-98
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| 7 |
ID:
170315
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| Summary/Abstract |
Since 1983, the Hong Kong dollar has been linked under a modified currency board mechanism to the US dollar. This arrangement has maintained confidence in the Hong Kong dollar's value, and is generally regarded as a success. Yet this confidence has been bought at the cost of volatility vis-à -vis other currencies and volatility in the economy as a whole. Geopolitically, as a Special Administrative Region of China, Hong Kong may find a link to the US dollar unsustainable, particularly if US-China tensions worsen. However, linking to China's RMB will not be a sensible option as long as convertibility of the RMB remains restricted. Linking the Hong Kong dollar to the IMF's SDR, which includes the RMB, would be a possibility in the future—the more attractive if by then there is wider use of the SDR.
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| 8 |
ID:
108603
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| 9 |
ID:
019841
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| Publication |
April-June 2001.
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| Description |
159-171
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| 10 |
ID:
018909
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| Publication |
April 2001.
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| Description |
33-38
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| 11 |
ID:
061166
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| 12 |
ID:
023542
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| Publication |
Feb 2003.
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| Description |
64-75
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| 13 |
ID:
023309
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| Publication |
Jan/Feb 2002.
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| Description |
24-29
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| 14 |
ID:
020906
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| Publication |
Feb 2002.
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| Description |
1-7
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