Results 1  10
of
94
Nearcomplementary Sequences With Low PMEPR for Peak Power Control in Multicarrier Communications
, 2009
"... New families of nearcomplementary sequences are presented for peak power control in multicarrier communications. A framework for nearcomplementary sequences is given by the explicit Boolean expression and the equivalent array structure. The framework transforms the seed pairs to nearcomplementary ..."
Abstract

Cited by 3 (0 self)
 Add to MetaCart
bound. An efficient generation algorithm for permutations is developed for the distinct sequences. In addition, new families of nearcomplementary sequences of various lengths and PMEPR < 4 are also presented, where the sequences are constructed by the framework employing the seeds of shortened
Existence of codes with constant PMEPR and related designs
 IEEE TRANS. SIGNAL PROCESS
, 2004
"... Recently, several coding methods have been proposed to reduce the high peaktomean envelope ratio (PMEPR) of multicarrier signals. It has also been shown that with probability one, the PMEPR of any random codeword chosen from a symmetric quadrature amplitude modulation/phase shift keying (QAM/PSK) ..."
Abstract

Cited by 12 (2 self)
 Add to MetaCart
ary codes of constant PMEPR for sufficiently large and with a rate loss of at most log 2. We also obtain a Varsharmov–Gilberttype upper bound on the rate of a code, given its minimum Hamming distance with constant PMEPR, for large. Since ours is an existence result, we also study the problem of designing
High Rate Codes with Bounded PMEPR for BPSK and Other Symmetric Constellations
"... In this letter, we consider the problem of constructing high rate codes with low peak to mean envelope power ratio (PMEPR) for multicarrier signals. Assuming coefficients of the multicarrier signal are chosen from a symmetric qary constellation, we construct codes with rate 1 − 1 2 and PMEPR of les ..."
Abstract

Cited by 1 (0 self)
 Add to MetaCart
In this letter, we consider the problem of constructing high rate codes with low peak to mean envelope power ratio (PMEPR) for multicarrier signals. Assuming coefficients of the multicarrier signal are chosen from a symmetric qary constellation, we construct codes with rate 1 − 1 2 and PMEPR
On Cosets of the Generalized FirstOrder Reed–Muller Code with Low PMEPR
, 2006
"... Golay sequences are well suited for use as codewords in orthogonal frequencydivision multiplexing (OFDM) since their peaktomean envelope power ratio (PMEPR) in qary phaseshift keying (PSK) modulation is at most 2. It is known that a family of polyphase Golay sequences of length 2m organizes in ..."
Abstract

Cited by 23 (3 self)
 Add to MetaCart
phenomena can now be understood within a unified framework. A lower bound on the PMEPR of cosets of RMq(1, m) is proved as well, and it is demonstrated that the upper bound on the PMEPR is tight in many cases. Finally it is shown that all upper bounds on the PMEPR of cosets of RMq(1, m) also hold
On Multicarrier Signals Where the PMEPR of a Random Codeword is Asymptotically log n
 IEEE Trans. Inform. Theory
, 2004
"... Abstract—Multicarrier signals exhibit a large peaktomean envelope power ratio (PMEPR). In this correspondence, without using a Gaussian assumption, we derive lower and upper probability bounds for the PMEPR distribution when the number of subcarriers is large. Even though the worst case PMEPR is o ..."
Abstract

Cited by 15 (4 self)
 Add to MetaCart
Abstract—Multicarrier signals exhibit a large peaktomean envelope power ratio (PMEPR). In this correspondence, without using a Gaussian assumption, we derive lower and upper probability bounds for the PMEPR distribution when the number of subcarriers is large. Even though the worst case PMEPR
A DETERMINISTIC ALGORITHM THAT ACHIEVES THE PMEPR OF Clog n FOR MULTICARRIER SIGNALS
"... Multicarrier signals often exhibit large peak to mean envelope power ratios (PMEPR) which can be problematic in practice. In this paper, we study adjusting the sign of each subcamer in order to reduce the PMEPR of a multicarrier signal with n subcarriers. Considering that any randomly chosen code ..."
Abstract
 Add to MetaCart
Multicarrier signals often exhibit large peak to mean envelope power ratios (PMEPR) which can be problematic in practice. In this paper, we study adjusting the sign of each subcamer in order to reduce the PMEPR of a multicarrier signal with n subcarriers. Considering that any randomly chosen
On the PMEPR of binary Golay sequences of length 2n”, submitted
, 2013
"... Abstract—In this paper, some questions on the distribution of the PMEPR of standard binary Golay sequences are solved. For n odd, we prove that the PMEPR of each standard binary Golay sequence of length 2n is exactly 2, and determine the location(s) where peaks occur for each sequence. For n even, w ..."
Abstract

Cited by 1 (1 self)
 Add to MetaCart
Abstract—In this paper, some questions on the distribution of the PMEPR of standard binary Golay sequences are solved. For n odd, we prove that the PMEPR of each standard binary Golay sequence of length 2n is exactly 2, and determine the location(s) where peaks occur for each sequence. For n even
A Simple Construction of 16QAM Codewords with Low PMEPR for OFDM Signals
"... Abstract—Golay sequences have been introduced to construct 16QAM (quaternary amplitude modulation) code for the orthogonal frequency division multiplexing (OFDM), reducing the peaktomean envelope power ratio (PMEPR). As an alternative way to construct Golay sequences, the construction of 16QAM ..."
Abstract
 Add to MetaCart
Abstract—Golay sequences have been introduced to construct 16QAM (quaternary amplitude modulation) code for the orthogonal frequency division multiplexing (OFDM), reducing the peaktomean envelope power ratio (PMEPR). As an alternative way to construct Golay sequences, the construction of 16QAM
Identify More NonGolay Complementary Sequences for OFDM with Low PMEPR Using Multidimensional Root Pairs
"... Abstract—Recently, subroot pairs and sequences are introduced to identify DavisJedwab (DJ) codes, nonDavisJedwab (nonDJ) Golay complementary sequences (GCS) and nonGolay complementary sequences (nonGCS) for OFDM with low PMEPR. In this paper, we extend subroot pairs to superroot pairs. A d ..."
Abstract
 Add to MetaCart
Abstract—Recently, subroot pairs and sequences are introduced to identify DavisJedwab (DJ) codes, nonDavisJedwab (nonDJ) Golay complementary sequences (GCS) and nonGolay complementary sequences (nonGCS) for OFDM with low PMEPR. In this paper, we extend subroot pairs to superroot pairs. A
Results 1  10
of
94