Optimal symbol mapping diversity for multiple packet transmissions

Samra, H.; Ding, Zhi; Hahn, Peter

doi:10.1109/icassp.2003.1202585

“…Constellation reassignment was considered in [4] for multiple packets transmissions over additive white Gaussian noise (AWGN) channels. The destination uses automatic repeat request (ARQ) to request retransmission of packets that were decoded erroneously.…”

Section: Introductionmentioning

confidence: 99%

Trans-Modulation in Wireless Relay Networks

Seddik

¹

,

Ibrahim

²

,

Liu

³

2008

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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“…A candidate is chosen and removed from , and we proceed to find and , etc. In constructing the candidate set , the inequality of interest becomes (8) with and radius…”

Section: Applying Sphere Decodingmentioning

confidence: 99%

“…Zhang and Kassam outlined a hybrid ARQ protocol for rate-compatible codes in fading channels that selectively combines a subset of the received transmissions [7]. Recently, an approach that adapts the bit-to-symbol mapping for each retransmission was developed for an integrated receiver, providing significant reduction in bit error rate (BER) while requiring minimal increase in system complexity [8], [9]. Also, approaches exist that exploit retransmission diversity at the output of intersymbol interference channels [10], [11].…”

Section: Introductionmentioning

confidence: 99%

New MIMO ARQ protocols and joint detection via sphere decoding

Samra

¹

,

Ding

²

2006

IEEE Trans. Signal Process.

Self Cite

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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“…Very little research is conducted on diversity combining techniques [11]- [13] at the modulation layer to enhance power and bandwidth efficiency. The methods in [11]- [13] retransmit partial information in a predetermined fashion without exploiting channel state information (CSI). Furthermore, these methods have high joint decoding complexity for frequency-selective channels.…”

Section: Introductionmentioning

confidence: 99%

Bandwidth-Efficient Selective Retransmission for MIMO-OFDM Systems

Zia

¹

,

Kiani

²

,

Saqib

³

et al. 2015

ETRI J

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

show abstract

Optimal symbol mapping diversity for multiple packet transmissions

Cited by 29 publications

References 11 publications

Trans-Modulation in Wireless Relay Networks

Trans-Modulation in Wireless Relay Networks

New MIMO ARQ protocols and joint detection via sphere decoding

Bandwidth-Efficient Selective Retransmission for MIMO-OFDM Systems

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