2012
DOI: 10.1109/tcomm.2012.013112.110096
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Performance of Diversity Combining ARQ Error Control in a TDMA SC-FDE System

Abstract: The Quality of Service (QoS) requirements for modern broadband wireless systems can be very high, with small error rates and delays. Packets with errors are usually discarded and need to be retransmitted, leading to performance degradation. An alternative to simple retransmissions like Automatic Repeat reQuest (ARQ) schemes, that can minimize the degradation is to combine the signals associated to different transmission attempts, usually called diversity combining techniques. This paper considers the use of Si… Show more

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Cited by 5 publications
(6 citation statements)
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References 35 publications
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“…Chelli et al [2] study the performance of HARQ(hybrid ARQ) with incremental redundancy over double Rayleigh channels, and evaluate the delay experienced by Poisson arriving packets. Pereira [17] considers the use of Single-Carrier (SC) modulations with Frequency-Domain Equalization (FDE) and low-complexity soft combining ARQ schemes. An accurate analytical model is proposed for the evaluation of the uplink packet delay in non-saturated traffic condition, and for the system's throughput (goodput) considering a generic packet arrival process.…”
Section: Related Workmentioning
confidence: 99%
“…Chelli et al [2] study the performance of HARQ(hybrid ARQ) with incremental redundancy over double Rayleigh channels, and evaluate the delay experienced by Poisson arriving packets. Pereira [17] considers the use of Single-Carrier (SC) modulations with Frequency-Domain Equalization (FDE) and low-complexity soft combining ARQ schemes. An accurate analytical model is proposed for the evaluation of the uplink packet delay in non-saturated traffic condition, and for the system's throughput (goodput) considering a generic packet arrival process.…”
Section: Related Workmentioning
confidence: 99%
“…So, there is a frame that is repeated continuously and is structured in slots. Users are assigned statically to slots and we consider in this article that users can only be assigned to one slot, and each slot has the same length of a data block (or packet) [11]. There is a one-to-one correspondence between packets and slots.…”
Section: Medium Access Protocol and System Behavior Diversity Combinimentioning
confidence: 99%
“…This section addresses these issues. The system level scalability and throughput-delay performances are evaluated for different E b /N 0 conditions, with the help of the analysis tools presented in [11,13]. Given the complexity of the NDMA system, we decided to have Q max = 4 with an optimal MT transmission probability calculated using [13].…”
Section: Hybrid Arq Vs Ndmamentioning
confidence: 99%
“…The design of future broadband wireless systems presents considerable challenges since those systems are expected to have high power and spectral efficiencies over channels with strong time-dispersive effects [1], [2]. It is well known that high power and spectral efficiency are conflicting goals since the increase in one is achieved at the decrease of the other.…”
Section: Introductionmentioning
confidence: 99%
“…To cope with channel errors, a BS can ask for additional copies of the same packet, but those copies might have errors since channel conditions might not vary for subsequent retransmissions leading to a throughput degradation. Fortunately the use of Hybrid Automatic Repeat reQuest (H-ARQ) [3] can be useful in such conditions, especially when employing Diversity Combining (DC) H-ARQ [1], since it uses the individual copies from each symbol, received at the BS, to create a packet with better reliability with appropriate equalization techniques.…”
Section: Introductionmentioning
confidence: 99%