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Recently interleaved division multiple access (IDMA) has been proposed as an enhancement for 3GPP wireless broadband standards. Timing synchronisation in an IDMA system must take place in conjunction with signal detection and decoding. This paper compares an iterative timing recovery technique with a conventional timing recovery approach for IDMA systems in the uplink. Under high multiple access interference...
In recent years, a trend has emerged in the use of colour to increase the data capacity of the 2D barcode. However the decoding of such colour barcode can be challenging in a mobile environment due to blurring effect that is commonly found in images captured by camera mobile phone. Blurring affects the synchronisation between the cells. It also causes the colour value of the cell to be wrongly interpreted...
Fibre channel is a gigabit-speed network technology which dominates todaypsilas high-end storage network market. Its topology consists of several layers. This paper presents a transceiver design with FS-HSPI compliant interface used for Fibre Channel Transmission Protocol Layer.. or FC-1 layer. Optimized 8B/10B encoder/decoder architecture and parallel CRC checking algorithm are used in order to satisfy...
In this paper, we present a new technique to improve the reliability of H-tree SRAM memories. This technique deals with the SRAM power-bus monitoring by using built-in current sensor (BICS) circuits that detect abnormal current dissipation in the memory power-bus. This abnormal current is the result of a single-event upset (SEU) in the memory and it is generated during the inversion of the state of...
The rate compatible punctured convolutional code (RCPC code) is an important module in Multi-band Orthogonal Frequency Division Multiplexing Ultra Wide Band (MB-OFDM-UWB) indoor positioning system introduced in this paper as a kind of useful channel coding to offer more protection against all kinds of channel noise under indoor channel environments. In this paper, RCPC code for MB-OFDM-UWB indoor...
This paper presents a technique for efficient gate-level realization of strongly indicating function blocks. For the function block implementing the desired logic, the input state space explodes as it expands exponentially for even a gradual increase in the number of inputs. In this context, a novel design-methodology for realizing non-regenerative logic as a function block, under the discipline of...
Recently, hierarchical modulation has been considered as a way to increase the payload data in terrestrial digital multimedia broadcasting (T-DMB) transmission systems. This paper proposes a robust symbol synchronization method for T-DMB receivers operating in hierarchical modulation mode. It adopts a timing error detector which produces a timing phase error at the OFDM symbol rate instead of the...
Li and Xia have recently investigated the design of space-time codes that achieve full spatial diversity for asynchronous cooperative communications. They show that certain of the binary space-time trellis codes derived from the Hammons-El Gamal stacking construction are delay tolerant and can be used in the multilevel code constructions by Lu and Kumar to produce delay tolerant space-time codes for...
Correlative minimum shift keying (MSK), a second order polynomial modulation scheme known as tamed frequency modulation (TFM), is a constant envelope type of modulation with a perfect peak to average power ratio (PAPR), besides the property of low out of band power. We apply the linearized TFM to the single carrier transmission with frequency domain equalization (SC/FDE) concept. We then obtain a...
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