PSK bit mappings with good minimax error probability
نویسندگان
چکیده
Labelings of multilevel PSK constellations are analyzed with respect to the error probability for individual bit positions, when symbols are transmitted over additive noise channels. When the maximum bit error probability is minimized instead of the average, the best labeling is in general not a Gray code. We develop a new class of labelings by modifying balanced Gray codes into better, but non-Gray, labelings.
منابع مشابه
Constellation mappings for two-dimensional signaling of nonuniform sources
The design of two-dimensional constellation mappings for the transmission of binary nonuniform memoryless sources over additive white Gaussian noise channels using standard -ary PSK and QAM modulation schemes is investigated. The main application of this problem is the incorporation of an adaptive mapping assignment in modem devices that employ fixed PSK/QAM modulation schemes for the transmiss...
متن کاملMultilevel Codes and Multistage Decoding for Unequal Error Protection
| In this paper, multilevel coded modulation with multistage decoding and unequal error protection is discussed. Three types of unconventional partitionings for 8-PSK and 16(64)-QAM constellations with UEP capabilities are analyzed. Based on the tight upper/approximated bounds on bit error probability, it is shown that more degrees of freedom in the construction of multilevel coding and multist...
متن کاملSimulink Based Comparative Analysis of M-ary Phase Shift Keying Modulation Schemes
This paper focuses mainly on Bit Error Rate(BER) and Signal to Noise Ratio(SNR).To analyse the system’s performance probability of error plays a major role. Each modulation technique has its own performance while dealing with signals corrupted with noise. This paper describes the comparative analysis of basic M-ary Phase Shift Keying modulation schemes like BPSK, QPSK,8-PSK and 16-PSK. It gives...
متن کاملSome new twists to problems involving the Gaussian probability integral
Using an alternate form of the Gaussian probability integral discovered a number of years ago, it is shown that the solution to a number of previously considered communication problems can be simplified and, in some cases, made more accurate (i.e., exact rather than bounded). These problems include the evaluation of: 1) bit-error probability of uncoded phaseshift keying (PSK) with Costas loop t...
متن کاملBit error probability of coherent M -ary PSK over flat Rayleigh fading channels
Systems using coherent multilevel PSK to communicate over flat Rayleigh fading channels are considered. We present a closed-form expression for the exact bit error probability (BEP) when the binary reflected Gray code is used to map bits to symbols. The result is a general, simple, and correct expression, which has not been previously available in the literature. A comparison between this new e...
متن کامل